yellow leaves

[MariJan]

Speaking from experience I can tell ya promix is ready. Right outta the bag. I add nothing to it except Jack's.

@MariJan has used jacks in soils with very good results. Maybe she can provide some input.

Yep I use peat mixed with Pearlite/vermiculite. I add Jacks cal/nit and epsom salts. Veg I just use the classic Jacks. For flower I use Jacks Blossom boost with the Cal/nit and epsom every feeding 1/4 tsp of each per gal of water. I water when dry. Every 2-3 days lately 3 days now that it is cooler outside. If I find pests I use DE, BT or Neem oil. All wash off easy and do not leave residue. I wash my weed at harvest. With juice from 1/2 of a lemon and 1/2 c baking soda and 2 rinses. All in 5 gal buckets. I use a 3 bucket system.

 

[Growdude]

I'm coco/pearlite and have found I need to water enough that there is runoff
It acts to flush the pot and keep salts from building up.
Salts building up in the medium will lower the PH even further
Those salts have an osmosis effect on the plant thats not good.