Congratz! Your cannabis seeds have sprouted, and you are ready for the next (big) stage! The vegetative stage is the growth phase when your cannabis plants bulk up, establish roots, and gear up for the flowering stage. Think of the veg stage as a solid foundation—you want those roots, stems, and foilage to be as strong and well-established as possible. That way, your plants can support a heavy yield of big, chunky, frosty buds dripping with resin!
In this guide, we’ll cover the essentials for mastering the vegetative stage, from timelines to training, covering environmental settings, and everything else in between to help you grow healthy, happy cannabis plants with ease.
TL;DR
- Vegetative Stage Duration: 3 to 16 weeks, depending on genetics and conditions.
- Light Cycle for Indoors: Stick to an 18/6 cycle for strong growth.
- Key Nutrients: Nitrogen (N), Potassium (K), Magnesium (Mg), and keep an eye out for deficiencies.
- Training Methods: Use fimming, supercropping, and SCROG for better growth.
- Repotting: Essential for root health and overall plant growth.
What is the Vegetative Stage of Cannabis?
Cannabis plants are photoperiodic species, meaning they respond to different periods of light and darkness. When a cannabis plant receives 18 hours of light and 6 hours of darkness, it will remain suspended in what is known as the vegetative stage.
During this time, a cannabis seedling grows into a strong, robust, healthy green plant focused on developing roots, stems, and foliage and will prefer a warm and wetter environment.
What’s the Timeline of the Vegetative Stage?
The vegetative stage will start once your cannabis seedlings receive 18 hours of light and 6 hours of darkness. Typically, an indoor grower can veg their seeds until they are big and bushy enough, lasting between 4 and 10 weeks. The biggest-sized plants require the most time, nutrients, and potential training. Outdoor-grown cannabis plants will respond to the seasons, so get planting your cannabis seeds in the ground in time for spring to give your crops enough time in the vegetative stage to grow big and healthy.
How Long Should I Veg Cannabis Plants Indoors?
If your grow space is tight, you can keep the vegetative stage short—around 3 to 6 weeks. This will produce plants that are 12 to 16 inches (30-40 cm) tall.
However, if you have the room and want your weed plants to grow extra big and bushy, you can extend that period to 6-10 weeks, allowing plants to grow 24 inches (60 cm) and above.
One key thing to keep in mind is that your plants will double or even triple in size during the flowering stage. Always provide plenty of space around the pots before flowering to avoid overcrowding and consider how much space and height your plants can comfortably grow to.
The Vegetative Stage Outdoors
Growing cannabis outdoors is a little different because your plants follow the natural, seasonal light cycle. The vegetative stage lasts until late summer, when the days start to get shorter. For most regions, this means your plants will veg for 8 to 16 weeks.
Timing is everything when planting outdoors. In colder regions, wait until mid-spring to plant your cannabis outside so it doesn’t get hit by frost. In warmer climates, like California, you can plant as early as late winter or early spring. And for those of you looking to keep things stealthy, planting later in the season can help manage the size of your plants.
If you’re growing autoflowers, they do their own thing and transition to flower after 3 to 4 weeks of veg, regardless of the light cycle.
We recommend planting autos outdoors from April until August for the best results and perpetual harvests of high-grade nugs.
The Vegetative Stage: Getting your plants ready for the marathon ahead
During the vegetative stage, your plant focuses on three main things: roots, shoots, and leaves. All of these are critical for a successful flowering period and big buds.
- Roots: Healthy roots absorb nutrients and water, and they provide the stability your plant needs. A strong root system helps your plant resist environmental stress like wind or pests.
- Shoots: Stems and branches provide the structure for your plant to support multiple bud sites. The stronger the stems, the more weight your plant can hold when it starts to flower.
- Leaves: Leaves are your plant’s energy factories—they take in light and turn it into food. More leaves = more energy for growing big, healthy buds later on.
How to Identify Male and Female Cannabis Plants
Identifying the sex of your cannabis plants is critical—especially if you’re growing regular (non-feminized) seeds. Male plants can pollinate your females, resulting in seeds instead of buds.
To avoid that, check your plants’ around 5 or 6 weeks into the vegetative stage. There will be small pre-flowers revealing the sex of the plant; however, it can be difficult to identify the males or females until the plants are in flower, especially for a beginner-level grower.
Feminized cannabis seeds revolutionized the way for every indoor grower on the planet, and simply means that every single plant will be “female” and produce seedless buds (Sinsemilla).
There are many advantages of using feminized seeds including eliminating the need to sex and remove plants, and the best being you can maximize your grow space with flowering ladies!
![Difference between plant sexes Understanding the sexual distinctions among plants: male, female, and hermaphrodite.](https://www.ilovegrowingmarijuana.com/wp-content/uploads/2024/03/Difference-between-plant-sexes.webp)
![Difference between plant sexes Understanding the sexual distinctions among plants: male, female, and hermaphrodite.](https://www.ilovegrowingmarijuana.com/wp-content/uploads/2024/03/Difference-between-plant-sexes.webp)
- Female Plants: Look for tiny white hairs (pistils) at the base of where the side branches grow from the main stem and at the top of the side branch canopy and main flower (Cola).
- Male Plants: These will form small, round pollen sacs.
Light Distance and Schedules During the Vegetative Stage Indoors
For indoor grows, the most common light schedule is 18 hours of light and 6 hours of darkness (18/6). This mimics the long summer days that cannabis thrives on. Some growers push it further with 20/4 or even 24/0 light cycles, but those can be a bit stressful for the plants and aren’t always necessary. Stick with 18/6 for a reliable balance of growth and energy efficiency, especially when you’re still developing your green thumb.
Hanging Your Lights for a Succesful Vegetative Stage of Cannabis
During the vegetative stage, LED grow lights can be positioned around 18-24 inches from the plants, allowing for broad light coverage and strong stem growth. For those using High-Pressure Sodium (HPS) lights or Metal halide (MH), which emit higher heat levels, it’s best to maintain a distance of about 24-36 inches during the vegetative stage to avoid heat stress. It is extremely important that the grow room temperature remains as close to around 75℉ (24℃) with the lights on and humidity levels are high.
The Best Nutrients for the Vegetative Stage of Cannabis
During this phase, your vegetating cannabis plants need plenty of nitrogen (N), potassium (K), phosphorus (P), magnesium (Mg), calcium (Ca), and trace elements. These nutrients support healthy roots, bushy foilage, and stem growth, which is what your plants are focused on during veg.
Start with nutrient-rich soil, and after a few weeks, supplement with fertilizers. Organic fertilizers are great for beginners as they reduce the risk of overfeeding. Liquid fertilizers are quickly absorbed and used by plants resulting in a thriving grow room.
Watering Your Weed Plants in the Vegetative Stage
A cannabis plant’s roots in the vegetative stage love water, oxygen, and lots of nutrients, but you have to be careful not to overdo it. Overwatering can lead to root rot, and that’s a real buzzkill for your plants and you as a grower!
The best way to water your cannabis plants is to use the same volume of water each time and only water when the pots are lightweight and the growing medium is dry. Water the pots slowly and wait for the water to exit the bottom of the pots. (pH of 5.5-6.2 for hydroponics or 6.0-7.0 for soil) You can also insert your index finger down the sides and feel how moist the edges of the pots are.
Airflow and Spacing for Vegging Cannabis
Good airflow is key to keeping your plants healthy and preventing issues like mold or mildew. Make sure you’ve got oscillating fans circulating air throughout your grow space.
Also, give your plants enough space to grow without overcrowding—this ensures proper light penetration and airflow between them.
Training and Pruning Cannabis During Veg
The vegetative stage is the perfect time to train and prune your plants. Techniques like topping, fimming, supercropping, and SCROG help manage plant size, improve light exposure, and increase the number of bud sites. Start training early, especially with high-stress techniques like supercropping, so your plant has time to recover.
For autoflowers, avoid heavy training since their shorter lifecycle makes it harder for them to bounce back from stress.
Repotting for Healthy Roots
Repotting during the vegetative stage helps your plant develop a stronger root system. When your plant starts to outgrow its current pot, it’s time to move it to a larger one. Make sure you repot carefully and water your plant well afterward to reduce transplant shock.
An example of repotting cannabis plants during the vegetative stage would be growing a seedling inside a 2-gallon (7.5-liter) pot for the first 28 days. Once the roots have filled the pot, you would then carefully transplant it into a larger pot that is 5-gallon (20 liters) for the other 28 days before flowering. Think of it like giving your plants new shoes.
Ultimately, the bigger the pots, the bigger the root zone is, which will play a major role in the final size, structure, and yield of your cannabis plant.
Vegetative Stage Week By Week
Weeks 1-3: Cannabis Vegetative Growth
![Week 1 - Cannabis plant A close-up of a 1-week-old cannabis seedling with a small, vibrant green pair of true leaves under soft lighting.](https://www.ilovegrowingmarijuana.com/wp-content/uploads/2022/04/Week-1.webp)
![Week 1 - Cannabis plant A close-up of a 1-week-old cannabis seedling with a small, vibrant green pair of true leaves under soft lighting.](https://www.ilovegrowingmarijuana.com/wp-content/uploads/2022/04/Week-1.webp)
- Nutrient Introduction: Begin introducing nutrients as the plant establishes roots and new foliage
- Exponential Growth: Plants start doubling in size with over 12 hours of light, ideally 18 hours for indoor growth.
- Environment Setup: Optimize for 60-75% humidity and temperatures between 70°F and 75°F (21-24°C).
- Light and Water Requirements: Keep your grow lights at the correct distance and use a pH of 5.5-6.2 for hydroponics or 6.0-7.0 for soil.
- Plant Training: Apply different methods such as low-stress techniques, topping, fimming, super cropping, and pruning to change the plant’s growth structure.
![Week 3 - Cannabis plant A 3-week-old cannabis plant with a sturdy stem and several layers of broad, dark green fan leaves.](https://www.ilovegrowingmarijuana.com/wp-content/uploads/2022/04/Week-3.webp)
![Week 3 - Cannabis plant A 3-week-old cannabis plant with a sturdy stem and several layers of broad, dark green fan leaves.](https://www.ilovegrowingmarijuana.com/wp-content/uploads/2022/04/Week-3.webp)
Weeks 4-5: Sexual Maturity
- Reaching Maturity: Plants show pre-flowers; males and females become identifiable.
- Environment Adjustment: Keep humidity between 55-60% and temperature between 71°F and 75°F (22-24°C).
- Transplanting Consideration: Repot as roots expand to prevent being rootbound.
- Enhanced Light Cycle: Maintain an 18-hour light cycle
- Advanced Training: Use Low-Stress Training (LST) and Screen of Green (ScrOG) to optimize light exposure.
![Week 5 - Cannabis plant A 5-week-old cannabis plant with lush, bushy growth and numerous large fan leaves filling the frame.](https://www.ilovegrowingmarijuana.com/wp-content/uploads/2022/04/Week-5.webp)
![Week 5 - Cannabis plant A 5-week-old cannabis plant with lush, bushy growth and numerous large fan leaves filling the frame.](https://www.ilovegrowingmarijuana.com/wp-content/uploads/2022/04/Week-5.webp)
Weeks 6-7: Preparing for Flowering Transition
- Environment Stability: Keep temperatures at 71°F and 75°F (22-24°C) and reduce humidity to 50% for mold prevention.
- Final Transplanting: Ensure the final pot size is sufficient for root expansion through flowering.
- Light Adjustment: Continue the 18-hour light cycle,
- Final Training Steps: Conclude LST and topping, considering a final defoliation before switching to a 12/12 light cycle.
![Week 7 - Cannabis plant A 7-week-old cannabis plant with a tall, vigorous structure and an expansive canopy of vibrant green leaves.](https://www.ilovegrowingmarijuana.com/wp-content/uploads/2022/04/Week-7.webp)
![Week 7 - Cannabis plant A 7-week-old cannabis plant with a tall, vigorous structure and an expansive canopy of vibrant green leaves.](https://www.ilovegrowingmarijuana.com/wp-content/uploads/2022/04/Week-7.webp)
When to Flip to Flower
When you’re ready to move your plant from the vegetative stage to flowering, switch your light schedule to 12 hours of light and 12 hours of darkness (12/12). You will want your vegetating plants to be well established and close to the 8-9th internode with large-sized fan leaves.
Timing is key here—and remember that your plant may double or triple in size during the flowering stage, so provide lots of space between each plant and anticipate them to grow tall and wide.
Final Thoughts
The vegetative stage is where all the magic happens, and you get to watch your precious little seedlings become young ladies capable of bountiful harvests. Providing your vegging plants with the right amount of light, air, heat, darkness, and nutrients is the key to success. Using feminized cannabis seeds makes life much easier as a beginner-level grower, and be careful of overwatering. Good luck becoming a master of veg and learning the ways!
what week do they start to bud
I’m growing auto plants outside started the end of April I noticed some of the tops dying I think something is laying eggs in the tops also something is eating the inside of the stalk and stems, any thoughts
I have a sativa plant that’s 6 ft tall have leaves indoor plants but don’t have the abundance of the fluff been feeding the compost Miracle growth dirt and all-purpose plant food but it’s not fool like I would think it would be so what do you think the problem?
outdoors and no auto please ,cant fine nkuthing unless they talk about lights are auto some of us don’t do lights are auto the great outdoors baby…
I’m confused. I thought vegetative stage preferred blue lights. Should I convert to reds for better growth?
My femminized plants are 12 inches tall and look healthy when do I start the next stage?
I have your fertilizer for the plants all fall from him what order do you use them and how much do you give each plant
Hi I’m growing AK-47 and she is 4 weeks today. Doing very well,my question is should I transplant before flower stage?
I have giant fan leaves can i cut them. they cover the hole plant
was it wise to remove the 7ft. male plants
I have 40 white widows, they were planted at the same time, same light and same water/nutrients. Whay are some 15 inch high and some only 8 inches high.
My tent is set and under my control. I have 3WW sprouted and happy. Not so much luck with the BB. but I made mistakes early. I’m learning but couldn’t have done it without your wonderful grow guides. Thank you.
I need help please I have grow lights and I dont know when my plants will bud and I’m not sure of lighting cycles
Greetings Robert, much respect for info…..! One love.!
Hello. Newbie here. Q: when it’ says a plants flowering time is 8 weeks, does that mean it takes 8 weeks to reach the flowering stage, or it’s IN the flowering stage for 8 weeks? Thanks folks. ☮️
I try to do the 18-6 light routine but I don’t have a timer so I’m off a couple hours of light or darkness now and then..
My question is how does the plant know when to start flowering…is 12-12 the only wAy I can get flowering to start?when do I know when to start the 12-12 routine?
will the native wild cannabis cross pollinate myfeminised purple haze plants that i will be moving out doors soon? also thanks for the quality of the seeds everything is going great so far i will be doing more business with you again thanks again
What if I dont have liquid foods or stores here that dont have any of those food. what can I use as food? what organic can I use. cow or pigs dry waste or fish guts? how can i make my own soil what’s the best soil?
You need to join forum there are growers just waiting to help out
Happy grow
I’ve got 3 plants 3 ft tall where the fan leaves come out there is no growth should I remove them or leave them to feed the sideshoots that should come out their female seeds
I tried downloading the growing guide several times but never got an email confirming it. ( on my ipad). Where is it? Checked my junk folder, not there either.
It is an e book so yoh download it. Should be in your downloads. If you have it blocked you may have to adjust your settings.
Happy growing the ebook is full of good info Robert did a great job.
[…] the vegetative stage, you’ll manipulate the light, so there is a minimum of 18 hours of light per day — some growers […]
My plant is 22 days old and is about 5 1/2 inches tall, and is in its 5th series of veg. But I’m only getting three leaves at a time instead of 5,7,or 9. My question is, is this normal and is that about the right height for my plant???
I have 5 plants that are about 5 weeks old i still cant tell if there male or female. I dont have a led grow light all im using is 6 light bulbs from home. Is that enough light for them bc there not growing tall just very busy.
I really appreciate the information I get here. IT helps to make right decisions when in doubt. Thanks again
This is all great information when I was growing hydro but now out in the woods things are a lot different. You have got to help the best way U can but mother nature does the rest mostley I keep my fingers crossed lol. A lot of years I had great crops by just fertilizer a couple of times and a little pruning. And other years not so well are not as great of a crop but always enough to get me through to next growing season. Thanks for the info some I can use for the outdoors
I would like to know if I should cluster them or stagger them on a guerilla grow, and how big should they be when putting them out on their own. And how much water should I put on them per plant and how often, as I’d be wanting to stay away much as possible
Seedling grew, but is now turning yellow. Why? What should i do?
Robert,
All your information is very good and I get a lot of great tips and advice from IGLM. I buy my seeds from you and I get better each grow . Thank you.
I am gro out . Your advice on fertilizers doesn t tell me what to use. I started in seed starting soil and not sure what 3 number fertilizer to use next and then for flowering.
I love all the information you’re sharing with everyone. Unfortunately I grow outside so a lot of what you’re talkin about it’s not relevant to my method of growing. Last year was my first time growing outside on my roof. my purple orange CBD though she was very short her buds were amazing I wish I could put a picture with this message. I posted My pictures on my Instagram account Mistymay64 if you care to take a look but you’ll have to scroll down a bit my old man doesn’t think I should be posting pictures of pot plants so I’m not going to do that this season but I’m certainly not pulling down what I already put up that’s what I tell my silly man it’s legal now.
Again thank you for all the information you share
I myself, veg 6 weeks, T5
I use both Led 2000 watts Cob and Metal halide 315 As well when Cooler @ 600 watt Hps. All indoors
Great seeds and not Expensive!
Growing in Canada
I start my plants indoor with T 5 s I use Happy frog soil then move them outside middle of may my question is I plant in holes with Same soil happy frog what nutrients do I add and when
Thanks Rob I gained a lot knowledge with the article,since it’s legal in Michigan now I can really have some real nice fat ass plants ,I see nitrogen is key in the beginning I just want to veg them for around 2-3 months ,give them a great base before I flower them is this a good idea or am I over thinking?????
John,
We have to assume you are indoor growing. With that said; Depending on strain you could run into problems if you veg too long. First off; 3 months of veg will increase the time plant takes to finish. 2ndly; you may end up having to tie down plants and expend alot of effort keeping them under your lamps. We suggest 2 months Maximum for veg until you see how it goes. Another note: It depends on wheteher you are gorwing indica, Hybrid, or Sative/Haze genetics. Join our forum for friendly expert and enlightened support to allow to grow successfully. Peace
Hi, how long to you vegatate before switching to flower? Thanks.
I enjoy all of the information here at DR. Roberts house of Marijuana lot’s of tricks of the trade. However pimping Seeds is bullshit, not a Fan of Commercials. !
Tami, sorry; I am legally blind and did not mean to call you toni. Happy growing 🙂
As a commer grower – i am const trying to lear more, i enj your common sense layo of the vari cyc of growing-
Douglas, If you go to our store and look on the nutrient page, there is a feeding schedule that works perfectly. Start used for 2 weeks = 1/2 tsp. per gallon. Grow is used throughout veg cycle = 1/2 tsp. per gallon. Bloom used throughout flower including weeks 5-6 where you add Booster = 3/4 tsp. per gallon. Boost used 2-3 weeks before finish is added to Bloom at 1=2 tsp. per gallon along with the 3/4 tsp. of bloom. Boost is only used ofr 2 weeks.
Toni,
you can look in on your grow during the dark hours but, you cannot turn on the light. Interruption of the dark period can cause plants to hermaphrodite, although this is more Prominent during flower.
I have recently perched your fertilizer kit. Can u explain the feeding schedule? Ur Direction siad to rely on ur personal situation well I don’t have one. The last time I used fertilizer I about killed Them.so can u please walk me through the process. Thank .
So is it ok to look in on them during the Veg stage when its dark those 6 hrs? It’s quite cold where we are and I need to Monitor the temp closely & adjust things.
I love weed and my penis is nice
You should try sticking your pens in your dirt to encourage flowering.
Good info in what i just read
Trying some White Widow Indica seeds this time. Seems to be taking longer tho get to flowering stage than my previous plants. Is this an Indica thing??
Flowering indoors occurs when you induce flowering by changing the photo period from 18/6 to 12/12. Simple as that.
Feel free to join our forum where we can help guide you through your grow successfully. Happy growing, 🙂
My amnesia haze is taking longer to sprout a taproot I’m five days and
my plants are 6 weeks old 3 feet high ig grow tent when should they be out of veg, and put into flower stage help firstimer
kames,
You do not want the roots exposed to heat. I would use cloth pots, dig a hole and use the cooler dirt in the hole to shelter my root zone ion the pot. I also recommend for outdoors western growers to place posts every 8′ and invest in 50-60% shade cloth to bring those temps down on the canopy. Shade cloth could be your best friend. “Go Bobcats!” Sorry, I used to live in San Angelo 🙂
my seeds have germinated and I have planted them in small containers my question is since I live in South Texas where the temperatures always get in high 90s and we are all ready experiencing temperatures in the low 100s should put these new planted tap roots in direct or indirect sun light
Wayne,
I think you should join our forum. ilgmforum.com I am sure you will get a good exchange of info there 🙂
thanks bud i will join cheers
Earl Myrtue,
1 to 2 monrhs
hey all a friend gave me 6 bag seeds all are coming along fine i have a aerogarden to start them with. i topped he 4th node and again at the 4 node which made 6 0r 8 stuck them i 6 5 gal pots with manure /cow/sheep/ horse.so far they seem to like and the stalk is about the size of almost a nickel coin roughly 3 foot high. growing in my shed led light and a fan running. 18/6 liight looks like all female and they are starting to smell.i started the seeds in the aerogarden last xmas. it was a gift.all i have given is water not sure what to expect first time growing any tips on em or should i just stick with bottled water. thanks wayne
just set up indoor room with 4=2000 watt LEDs and the plants are about 1 month in veggie cycle.How long should I keep them in this cycle?
and also is it ok to giv them freezing water? dats wa av been doin jus cold water out tap 80percent dem looking good . thanks
Wiffin,
Hard time making out your language but, here goes.
No freezing water. Water temp need to be between 65-70f 68f is optimum for oxygen retention.
You can switch to whatever nutrients you want as long as they work.
If you have seeds of different strains and traits; You will see plants of different sizes in your grow. Nothing you can do about the genetic make up of your plants, except for investing in quality, stable genetics. Happy growing
Sorry for the really late reply. Never saw this. I suggest you join our forum, if you haven’t. No. Do not shock your roots with freezing water
they are 2 weeks into veg
hi can some1 tell me how come some my plants are smaller than others is dat nomal some are a lot smaller and what do I do to make it up do I just leave den or give den something. and also I started off using vita link is it possible to switch my feed over to jus coco a an coco b an stop giving it vita link
i have been growing northern lights for 2 months now, there are some great leaves coming in on top of the plant which is now 4 to 6 inch’s tall. My concern is that the main stalk is pretty skinny and does not look like it is getting any thicker. I have the plant tied up to a stick to help support its top heavy ness. Is this the way the plant grows? Should i be concerned and just play the waiting game? any advice would be great
RTM,
I am not trying to be rude or to insult you (it is not our way…) but, if you have a plant that has been in vegetative cycle for 2 months and it is only 4-6″ tall; You are doing somehitng wrong. My plants are 4-6″ in 2 weeks from seed germination. We are not set up here in the Blog for such grow support.
I strongly advise you to join us at ilgmforum.com and start a grow journal or topic, and allow us to see what you’ve got and we can guide you from there. Hang in there.
Twinhd,
After several weeks in flower it is not advisable to re-vegitate your plant. However; I f you decide to do so, just place the plant back into 18 or more hours of light. The plant will stress for 1-2 months and I cannot guess what would happen next. Not a good idea.
Happy growing
I’m into a flowering stage for several weeks now is there a way I can return her to a vegetable stage?
You can absolutely put the plant back into veg, it’s never too late. Just remove any “buds” and put it back to 24h light for a week, then 18/6 again. Takes a few weeks and will be good as new. Many people flower their plants, crop the tops and put the bottoms back into veg for a couple months and flower it again up to 2 more times!! Very common and safe, no loss in quality. I have personally reversed flower 4 times this year on multiple plants after a delay of between 3 and 5 weeks with no issues.
Hi Brad, be sure to hop onto the support forum. Our experts there are very open to help starting growers – I❤️GM
I m having the same problem D-ROCC, I ma first time grower,outdoors.Trying to do everything right , but just don’t seem to be working out.
My leaves keep dieing they keep curling up turning yellow or yellow on the tips and it spreads on the leaves or the leaves get brown spots on the leaves…..what am I doing wrong…..this is my first time growning……
How long can you stay n veg., before going into flower? First time grower. I have some n flower and next run in veg… Think I jumped gun. Veg will last 6-7 weeks til flower stage ends. Help
Tina,
You really need to join our forum. The blog is not set up for wholesale grow support. More simple Q & A.
A 2 foot fluorescent is good for propagation and early vegetation only.
Happy growing.
Hi guys, i just want to know if two 18w 2 feet fluorescent uv lights can be used in the vegetative stage. this is our first grow and after putting this uv light, with a few LED red and blue strips, the plants seemed to have started becoming much healthier. And how many weeks should i leave it in the veg stage? thanks so much!
I veg for 6 weeks, as a general rule of thumb.
THANK YOU that is super helpful nowhere in the article did it say how long to keep in veg. state for.
Hi, how long to you vegatate before switching to flower? Thanks.
I’m using a 65w T5 light for verging. With 5 plants. Is that enough light… First time grower
Brandon.
I am not sure how much light penetration you are going to get once the plants start bushing out. I suggest you join our support foerum. We have many experienced growers there willing to help 🙂
Yes
Thanks for all the info, I am a new grower and I was lost until I found this site, thank again.
Good to hear Enrique! If you like you can kick it with other growers on the support forum!
William,
It all depends on how long the dark period was interrupted. But most likely nothing will happen. If the lights were left off for 2 long this could have an affect on the plant but, leaving the lights on too long just promotes vegetative growth.
Happy growing, 🙂
Can a plants night cylce be interrupted in veg stage with no side affects?
Great read. Guys and gals know your junk..and grass. Thanks!
Robert love the site seeds and info. However I have tried multiple times to download the grow bible and have had no emails received or success to the download.
Hi John, all grow guides will be send to you when you start the download here: https://ilgm.com/grow-bible. Please contact [email protected] If you have any issues with the download.
I have 4 White Widow plants growing under lights. They are still only 3 – 4 inches tall, very leafy and green but I’m thinking they should be double the size by now ? I am using a 4 ft. 4 bulb florescent fixture. Supplemented by a full spectrum bulb. Are they on track ?
May have to try again. I am using Miracle Grow on them
Makesureyoure led lights are at a lux of about 4500 5500 during seedling/veg then 6500 during flower. Blue light spectrum to red light spectrum…get it?
Miracle grow is not that good for marijuana plants…it is a slow release fertilizer.
How are to you, I’ve requested several times for your free grow bible, I still haven’t received it, ??
HAPPY GROWING.
Hey my name is Mark and I wanted to know how can you tell the sex of a plant if its 2 1/2 weeks in veg?
[…] notice your plant is losing lower leave quickly because of the yellowing, particularly during the vegetation stage, you have an issue on your hands that requires and immediate […]
Without more information it is hard to give you an informed answer.
Please join our Support forum, and some of our many members and expert growers, will be able to help you out. 🙂
When you join, look in beginners forum, and fill out a support ticket.
Please help my plants not doing well the under leaves are yellow n I lost two of the bottom leaves my temp is 81.1 humidity is 52 the soil level is ph 4 phosphorus is 5 potassium is 6please help
PH should be 5.5 – 7 on average 6.5 is your goal
Nitrogen(bloodmeal) very important, it will fix a lot of problems, knats, keep top layer of dirt dry, knats love laying eggs in damp moist dirt, I layer pepper mint leaves over soil, plus its probly good for soil
Nitrogen-blood meal
Good info on veg state article. I’m sure I’ll be reading more, thanks
Come back anytime!
So I started growing 2 plants, in early August, outside, in Wisconsin. I know I’m way late on the growing season, but plan to move them indoors, with artificial light. Any suggestions???
[…] of absorbing and processing a much higher amount of carbon dioxide and other nutrients. During the vegetative stage of growth, the roots will continue to expand and the plant will grow taller. This is the point at […]
[…] they have an established, sturdy root system in place. The plant is ready to focus its energy on vegetative growth now, so it needs to be moved to a better location for such a task. You will need to educate […]
Bio
I have noticed that a lot of information on this site is contradictory due to language barriers and typo’s, I feel a proof reader is required to make this site even better than it is. A good example is when you speak of light leak then you say try doing it again but don’t disturb them ( contradictory ) , this is in no way meant to sound detramental to you. I do feel it would be advantageous to all users of this site.
Kindest regards
MJCTHC1
Your punctuation needs some work.
dude is obviously hight as hell, he repeated the same paragraph lol
HAHAHAHAAHAHAAAAAAA”” >.<
What if I dont have liquid foods or stores here that dont have any of those food. what can I use as food? what organic can I use. cow or pigs dry waste or fish guts? how can i make my own soil what’s the best soil?
Was looking for a good fertilizer for my girls going into first flowering stsge.im out so i need to order right away.
Bad example: next time paraphrase what had been said then try to explain it in your own words… the english language is fucked up when coming from another language/country.. and to be honest – maybe it may not make any sense to you however if you were born on this language: it makes perfect sense… I’m a grammatical asshole most of the times and as I read what was said, I hadn’t found many explicit errors to the nature. So with that being said, I find your comment an error within itself. All the best.
“I’m a grammatical assholes most of the times…” sound like you needed to proof read a little better.
If you basically know your Pot plants,you should basically know what is being said.(written!?.). Happy growing.
Lee&Jo,
Not sure what you mean by 1st stage. how many weeks into flower are you? I have re-potted in flower, but I carefully remove plant, and place it gently in new pot. New soil can encourage more root growth. A trick I used to employ was to take the flowering plant and place it right into a bag of potting soil; No pot at all. Very easy on the plant, and it will thrive. If you are more than 2-3 weeks in flower…I might ride out the grow in the smaller pot, just to be safe.
The thing with re potting and the soil content is the bacteria, just like in a fish tank… re – potting during the vegetative stage is fine, however if your doing it during the harvesting stage your most likely going to run into some problems… heck i’ve had branches break and have to be mended back to the plant just before harvesting: it sucks a whole lot, mainly because it takes roughly a week or two for the plant to fix your mistake of breaking the branch clean off… luckily when this instance happened it was above the node slightly but still. Holds the cycle back thus much more… As could be or can be the issue when re potting plants, however as long as everything adjustment wise is done within the vegetative stages you should be perfectly fine as long as your doing things within proper parameters as explained above.
can i re-pot my plants, 1st stage of flowering ?.
Wow! These are all great articles. Thanks ILGM.
I love the easy to understand content! A great guid.