# Re-veg

> Re-veg is returning a flowering or harvested plant to vegetative growth by putting it back under long days, often to save a genotype after harvest.

- Canonical: https://genetixbay.com/knowledge/glossary/re-veg.html
- Also written: reveg, re-vegging, revegging, re-vegetation, regeneration
- Glossary category: Cultivation and training · Evidence: Grower practice
- Status: Draft: awaiting expert review · Updated: 2026-10-31
- Licence: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/), attribute "GenetixBay cannabis glossary"

Re-veg (re-vegetation) is reversing flowering in a [photoperiod plant](https://genetixbay.com/knowledge/glossary/photoperiod.md) by restoring long days, usually 18 h or more of light. Left with some buds and leaves after harvest, the plant gradually stops flowering and produces new vegetative shoots, which can then be cloned or grown on.

## In practice

Breeders and [pheno](https://genetixbay.com/knowledge/glossary/pheno.md) hunters use re-veg to keep a plant they only identified as a keeper after smoking it. Leave the lower branches with some green leaves and small buds, keep the plant under [24/0](https://genetixbay.com/knowledge/glossary/24-0.md) or [18/6](https://genetixbay.com/knowledge/glossary/18-6.md), feed lightly, and wait. Expect 2-6 weeks of odd growth: rounded, single-blade or smooth-edged leaves before normal leaves return. Success varies; old, heavily stripped or very late plants often fail.

Accidental re-veg outdoors happens when a plant that started flowering early in spring sees lengthening days.

## Don't confuse with

- **Monster cropping**: rooting cuttings from a flowering plant; the cuttings re-veg.
- **Cloning before flower**: the easier route; keeping cuts of every candidate avoids needing re-veg.

## Related terms

[Monster cropping](https://genetixbay.com/knowledge/glossary/monster-cropping.md), [Flip](https://genetixbay.com/knowledge/glossary/flip.md), [Mother plant](https://genetixbay.com/knowledge/glossary/mother-plant.md), [Cloning](https://genetixbay.com/knowledge/glossary/cloning.md)

## Read more

- [Clone-only cuts and how to preserve them](https://genetixbay.com/knowledge/breeding/clone-only-preservation.md)
- [Selection and pheno hunting: sample sizes and scoring rubrics](https://genetixbay.com/knowledge/breeding/selection-pheno-hunting.md)