Do i stick with 321 formula to end

Im in week 1 of flower wedding cake photos and im using jacks 321, do i stay with that formula to the end or do i need to increase any of the parts, part a, epsom or part b, or decrease any part?

3 Likes

If you are following their exact 321 formula you don’t need to do anything. From seed to harvest same dose. I’ve gotten on the 4:2 bandwagon so 4g A and 2g B no epsom start to finish.

3 Likes

Jacks calls for you to use their Blossom Booster for first two weeks of flip, then back to 321 using parts A,B, and Epsom til finish. I use Jacks mixed at 421 after the first two weeks of flip, after the Blossom Booster.

2 Likes

So your saying you increase part a from 3.6 grams per gallon to 4 or 4.6 grams of part a

1 Like

4 gr part A, 2 gr part B, 1 gr Epsom. Some do it without adding Epsom but my lights burn through magnesium, so I add it for extra Mag and Sulfur.

5 Likes

I do a modified program for the first 3 weeks of flower. 2-2-2-1.2 with the addition of MKP (monopotassium phosphate) then resume the 3-2-1 program.

4 Likes

Is that 2 grams of bloom, 2 grams of part a, 2 grams of part b and 1.2 epsom i believe im in week one of flower fed this morning 4, 2,1 and slf 100 ph 6.0

1 Like

Also recharge once a week, tribus once a week, slf 100 once a week and i just ordered some fulvic acid 69% and t drops each feed which is every other day 5 gallons divided equally among the 3 plants and 720 watt light at 75%

2 grams Part A, 2 grams Part B, 2 grams Epsom, 1.2 grams MKP per gallon.

3 Likes