Nutrients During Flowering - Jacks 123

Nutrients Watering
1

Hello
Now that my girl is flowering, do I continue to fertilize the same as before flowering? I use Jacks 123.

  • Do I need any special “bloom” fertilizer?

  • Do I just continue with the Jacks?

  • Do I use the Jacks all the way through harvest (minus a couple of weeks at the end)?

  • Seed: Do-si-dos, Photo, from ILGM
  • Vessel: Coco + Perlite, 5 gal fabric pot
  • Nutrition: Jacks 123 + Silica
  • PH of Water: 68 (do not test runoff or ppm)
  • Environment: Outdoor
  • Location: Southern US, hot and humid
  • Temps: Upper 80s to upper 90s
  • Humidity; Day, Night

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2

Just keep on doing what you’re doing.

Next grow you could introduce a modified program using MKP with a 2-2-2-1.2 ratio for the first three weeks of transition to flower. Then resume the normal 3-2-1 program. But it’s not necessary.

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3

@Myfriendis410

Thanks for the reply. Don’t know what “ MKP with a 2-2-2-1.2 ratio” is???

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4

Monopotassium Phosphate, available on Amazon and others.

Your current ratio for Jack’s is 3 parts by weight Part A, 2 parts for Part B and 1 part Epsom. The ratio goes down to 2 parts A, 2 of B, 2 of Epsom and 1.2 parts MKP. Run for 3 weeks at first sign of preflowers.

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Grabbed a screen from a video I watched. Cropped for relevance. NPK and micros of Jack’s 321 on left. Rightmost column is the same for the formula @Myfriendis410 is referring to.

Screenshot_20220828-190542~3
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6

I adjust my Jack’s ratios as follows:

Jack’s 321 standard mix & used for veg= 3.6/2.4/1.2

Booster mix= Jacks Part A/ Cal nitrate (Part B) / Epsom salts / MKP

2/2.7/2/1.2

Flower mix= 3.8/2.2/1.2.

If calcium issues try 3.7/2.5/1.1

:v:

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7

Hello there, hope you’re still around and doing well.
I’m also doing a similar switch to Jacks 123.
Is your flower mix the same chemicals as the veg stage just different quantities?

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8

Yep. Exact same A/B/Epsom salts. In veg the plant just needs more N to grow. :100:

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9

Anybody use Jacks RO or Bloom?
I am, this grow.

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