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logic

How many hours of light do I need for veg growth?

How many hours of light do I need for veg growth?

  1. logic
    18/6 or 24/0, that is the eternal question.

    Those numbers refer to the amount of light and dark that the plant receives (18 hours of light / 6 hours of darkness). Anything above 14 hours of light per day will keep the plant in vegetative mode-- growing leaves and not buds. When you want to switch to flowering you reduce the cycle to 12/12.

    Cannabis plants grow without hassle under 24 hours of continuous light. There has been no controlled recordings of increased hermaphroditism or problems-- most growers now use the full 24/0 cycle.

    However, 18/6 does have it's advantages:
    • Reduced electricity costs. When you have a good mother plant collection and clone cycle, you don't need the increased growth the extra light provides. Lowering the cycle will save money.
    • Allows the equipment and room to cool down. Those 6 hours of darkness can be timed to happen during the hottest part of the day, providing some relief for growers in hot climates.

Recent Reviews

  1. DOCTOR BOBBY
    DOCTOR BOBBY
    5/5,
    good advice
  2. Flip3387
    Flip3387
    5/5,
    Not common sense to a beginner, answered my question.
  3. hamphealth
    hamphealth
    5/5,
    Convinced me.
  4. MrBulldops
    MrBulldops
    5/5,
    That is a common sense answer!
  5. burn4me
    burn4me
    5/5,
    perfect explanation