Seeds, sex & pollen

From the time you flip you plants to veg, how long should they be before they show sex? How long to you have to axe down the males?

I usually don't start flowering my plants under 12/12 until they show sex. Keep vegging untill you see preflowers or hairs. Look up in the FAQ, it has a section that will show you what to look for in males, females, and how to identify them. But i think 3 to 4 weeks of vegetative growth from seed is the earliest u might see sex determinated

madcatter said:

From the time you flip you plants to veg, how long should they be before they show sex? How long to you have to axe down the males?

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You don't flip to veg, you flip to flower, or from veg.

You should see signs of sex in anywhere from 3-4 days to 2 weeks.

I think you have a week or more after that for the male flowers to develop enough so that they are able to pollinate.