What's your runoff, and how are you testing both the water and the soil?

Adding undisolved lime is a bad idea. I'd make double sure it's a necessary step, and that it's not a misdiagnosis before doing something that drastic and stressful.

With an N-P-K of 20-20-20, likely Jack's directions are for a 2 week period or more. Does it say on the bottle? (sure you're not overdosing 'em?) Doesn't Supersoil already haves some nutrients? If so, when was your last transplant. (how long between last transplant and first nutrient application?)

Is the container (rootball) shaded? If not you might be fryting the roots.

Perhaps a picture? What do the leaf margins look like? Healthy and green, or brown and curling? Is there any 'bronzing' (bronze discoloration) of the leaves? Are they fading to yellow, or just a different shade of green? Any necrotic (dead or dying) spots?
Rusty Trichome Reviewed by Rusty Trichome on . Soil PH too Low Hello first post on this site. I am a newbie outdoor grower (green house actually). The PH of my water is around 7.2. My soil PH is around 5.5. My soil consists of CA Supersoil, Vermiculite, and Perlite. I use Jack's Classic 20-20-20 every third watering. Some of the big fan leaves are starting to droop a little and are slightly discolored. I'm sure this is the PH issue. I have read about adding hydrated lime but to raise it but that it can also be toxic and bipolar for PH testing. Rating: 5