Question is in the title. I am wanting to fill the screen up nicely with about 3 weeks of veg, how many plants should this take? The strain I will be growing is pineapple chunk from barneys.
I guess I should say how I am growing too. They will be in Sunshine mix with the Trio of Fox Farms nutes and the solubles. I just ordered 4 seeds today but was kinda worried about putting 4 in because of having the big screen it will be hard to train back branches. I may go with three for sure but 4 is a possibility.
Sunshine mix is great, you should look into using sunshine mix with perlite in a passive hydro method like hempy buckets if you're looking for a few large plants. Hempy buckets are great, my friends are running 3 plants in a hempy bucket under a 400 watt hps and gets 1-2 inches of growth on some nodes a day, after they hit the res at least. I like using promix instead of the recommended vermiculate, as promix has PH buffers that make growing basically foolproof. If I were you I'd try and sprout only 2 of your seeds first, or maybe even use bagseed if you can so you can dial in your system before going all in. Maybe even 1 seed a time, then get a bubble cloner either from ebay or elsewhere and put it into flower, if its female clone up a fresh batch.