ForeverGreen42
Well-Known Member
I started some seeds in a greenhouse around the beginning of march. How long before they reach maturity/start flowering out? A month or so?
when to add supplemental lighting with seeds
- Thread starter ForeverGreen42
- Start date
backtracker
Well-Known Member
September, October if they're not autos.
ForeverGreen42
Well-Known Member
Naw I mean like theyll probably start flowering out here in a month or two due to the light hours not being long enough just yet. Im trying to figure out when to start adding supplemental lighting to prevent them flowering out prematurely
Dabbinblunted
Well-Known Member
The seeds will most likely flower once they're about 4 or 5 weeks old and then reveg because it's so early still but they could stay in veg just depends on the strain etc
Dabbinblunted
Well-Known Member
I'de start it now but no later than 3 weeks
ForeverGreen42
Well-Known Member
Thanks @Dabbinblunted !!
sandhill larry
Well-Known Member
They will flower as soon as they reach sexual maturity. Which is commonly said to be 4-5 weeks. But in my Fall/Winter Seed Testers I had one start at 25 days old. So you need to get that day length up to 14 hours by the third week. Just to be on the safe side.
ForeverGreen42
Well-Known Member
Thank you so much!
eddy600
Well-Known Member
Not sure where you are located but seeds in early april should grow without the flower and reveg issue.
ForeverGreen42
Well-Known Member
Yeah I started in March :/ I'm already adding supplemental lighting tho to be safe
blake9999
Well-Known Member
Try this chart. select your city or closest to you and it will give you a yearly sunrise/sunset graph.
https://www.timeanddate.com/sun/usa
https://www.timeanddate.com/sun/usa