First of all re-veg means to re-vegetate in grower slang.
Re-vegetating is when you take a plant that’s in flower and force it back into vegetative state.
Vegetative state is the state or mode a plant is in when it is NOT flowering.
The main reason to re-vegetate is to make a mother plant. It’s nice to keep a mother plant in veg state, that way when you want to make new plants you just take cuttings from her and root them.
Sometimes a good plant sneaks up on you and you may decide you want to preserve her and re-vegging is one option.
There is a trick to re-vegging a marijuana plant though. You need to keep enough shade/sucker leaves on the plant to allow it to draw water up and transpire.
How To Reveg A Marijuana Plant
If you don’t keep enough shade leaves on your marijuana plant it can drown easily. Keep the lower “popcorn” buds on so you have some sites for re-vegetation to take place.
When you water be extremely careful not to give your plant much more water than the plant is going to use in a day. Don’t soak the pot. Feed your plant light doses of grow nutrients. I also like to use a product called Greenfuse Grow, it helps accelerate plant growth. I don’t use as much as the manufacturer suggests most of the time. Definitely don’t give the plant a heavy dose of this in the beginning stages of re-vegging.
You also need to keep enough bud sites going because that’s where you are going to see the plant begin to re-veg. Without any bud sites, the plant can’t produce new vegetative growth.
So cut your plant back similar to the picture above. This way you can harvest over 95% of the medicine and have plenty bud sites to get some good re-veg action.
Make sure to leave as many of those sucker leaves on as possible.
Put your plant into your veg room and give it 18 -20 hours of light. There is no need to give the plant straight 24 hours of light unless you are using florescent lighting. I don’t recommend using florescent lights to re-veg with but it has been done.
It will take about 1-2 weeks before you begin to see new growth shooting from the buds If you use a simple 400 watt metal halide HID light. Keep on watering LIGHTLY until the plant becomes bushy again and starts using more water.
Once the plant begins to re-veg start giving it more grow nutrients.
After 4 or 5 weeks you should have a plant that has fully transformed from a mature flowering plant to a mature plant in vegetative mode. In a couple more weeks you should be ready to start taking cuttings.
Remember to keep your mother plant in 18-20 hours of light and to give it at least 4 hours rest every night.
Some growers believe that a marijuana plant becomes more potent as it ages. After it reaches about 1 year it maxes out in potency.