- Jun 21, 2021
I need some insight, I’m growing GDP and GSC photoperiod seeds in coco, compost, Bio-char, perlite medium. I used organics during veg stage, GH Flora series added at transition stage. I’m in beginning of week 6 flowering stage. I noticed plants wasn’t growing so I checked the ppm and ph off my runoff. My ppm was higher than ppm going in, my ph was 7+. When I feed my nutrient ph is a 6.0. So I flushed with nutrient water phd to 4.0, 2 gal through 5 gallon pot check ph runoff still 7. Flushed more nutrient water 2 more gallons phd to 3.0 (red) using testing solution, checked ph 6.5 sweet pea green now. 2 more gallons and still greenish 6.2ish. What could be the catalyst? The organics I used were humus based compost with bio-char and mycorrhizae blended in Medium. Prepped medium with spirulina powder, stingy nettle root and leaf powder, dried kelp, sea moss water, molasses & agave nectar watered in during seedling stage to be ready at veg stage. I simply watered during entire veg + cal-mag, started using GH Flora trio with beastie blooms, super thrive, kelp, molasses, green coconut water & agave nectar during flowering stage. Ph is always 6.0 highlighter yellow (using testing solution). I have read a 7 is good range for soil and I am using the coco coir like soil with the organics, so why are my girls struggling at this ph range? Both plants are at start of week 6 flowering stage. I don’t want to go into panic mode and do something to create another problem while correcting the first issue. Some friendly insight would be much appreciated. First 3 pics are the same plant last pic is different plant, both Girl scout cookies same age, nutrients & lighting etc.