When to harvest? (Sativa) My 1st grow. Pictures included

Fallguy111

Well-Known Member
Without looking at your trichomes it is hard to tell. However from the pictures, you have at least 4 to 5 weeks to go minimum. Also the yellowing leaves seem to be isolated to one plant, which indicates an issue with that plant (assuming that all of the other plants in the picture are the same strain and age). The yellowing looks different than typical yellowing due to age/flowering stage.
Its hard to tell? You have an easy 6 weeks.
 

Modern Selections

Well-Known Member
You are at the early halfway point of the grow.

The yellow leaves are a result of the plant using up it's Nitrogen stores after the stretch. Normally week 3-4 the plants stop stretching and at that point they need a little N to replenish.

Flowering plants do not need a lot of N but they def need some. The evidence of that is the plant taking the nutrient from it's lower fan leaves.

At this stage it would be optimal to feed a 50/50 blend of Grow and Bloom. This will add a little N and keep the plant happy. I would cut off the yellow leaves so the plant does not sap energy from flowering to repair the leaves.

You can find a cheap 30-60x jeweler's loop on Amazon or eBay for under 10 bucks and that is more than enough to inspect your trichs.

Your are looking at another 5 weeks of flower before thinking about that though.

Also your temps are way too high. Try to pump some of that 63 degree house air in there and get those temps down. Add a another exhaust fan. Whatever it takes to get the daytime temps down to 75 of less.
 

michojay

Well-Known Member
What is your medium? And stop with the flush talk! It does nothing. It’s your first grow I get it. I fell for the bro science for years but then I grew up. Although you will find a lot of helpful info on here you will still find a lot of bro-lore on the interwebs. Those leaves look like a result of over feeding not under so try to get that in check. Also high 80s is too hot. It looks like you have nice plants on your hands and you’ve gotten them this far. Don’t love them to death before you make it across the finish line.
 

Budzbuddha

Well-Known Member
There are no “ week estimates ‘ to give.
Heavy sativas can and do run an easy 12 weeks ( + or - ) with pure landrace sativas going 16 weeks .
Don’t worry about head high - it’s a sativa ( it’s already there :weed: )

Plant will finish as long as it takes - regardless of breeder estimates or guesses.
Keep her healthy and happy and run it til she is fully mature.
 
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