Veg time is the length of the vegetative phase, from seedling or rooted clone until the flowering photoperiod begins. Under long days (18 h or more of light) a photoperiod plant stays vegetative indefinitely, so the grower chooses how long it grows before flowering. Autoflowers have no controllable veg time; they flower by age.
In practice
Common ranges: SOG clones get 1-2 weeks; most tent grows with a few trained plants get 3-6 weeks; SCROG and mainlined plants often get 6-8 weeks or more until the screen is mostly full. Because plants stretch after the flip, veg time is usually decided by height and canopy fill rather than calendar.
GenetixBay endorses 24/0 lighting in veg: cannabis does not need a dark period during vegetative growth.
Don't confuse with
- Days from seed: autoflowers are timed from germination, not by veg time.
- Flowering time: the weeks from flip to harvest, set mainly by genetics.
A seedling is a young cannabis plant from emergence of the cotyledons until it has several sets of true leaves, typically the first 2-3 weeks.The daily length of light versus dark; photoperiod cannabis flowers when nights grow long enough, rather than at a fixed age.A day-neutral cannabis plant that starts flowering by age, usually a few weeks after germination, regardless of light schedule; the trait is mainly recessive.SOG (sea of green) grows many small plants at high density with little or no veg time, each making one main cola, to shorten the cycle.SCROG (screen of green) trains a few plants under a horizontal net, tucking shoots so the canopy forms a flat, evenly lit layer of many tops.The stretch is the rapid increase in height in the first two to three weeks after switching to flower, when many cultivars grow 1.5 to 3 times taller.24/0 means lights on 24 hours a day with no dark period; GenetixBay endorses it for veg, as cannabis does not need a sleep period before flowering.Germination is the stage where a viable seed absorbs water, splits its shell and pushes out a root (radicle), usually within 1-7 days at 20-30 °C.The flip is switching a photoperiod plant from long vegetative days to a flowering light schedule, usually around 12 hours of light, to start flowering.A mother plant is a female kept permanently in vegetative growth to supply cuttings, so a selected genotype can be propagated as clones indefinitely.
