Hi guys. I have a particularly difficult plant that I am working with. It has been successfully revegged and cloned. I have kept it alive for maybe two years? It has always been a pain in the ass. Gives me grief when all the other strains are chugging along fine. It is definitely ph sensitive and prefers a more alkaline medium.
I have been watering with water adjusted to about 6.5. I am considering raising it closer to 7.0 to see if it likes that. It showed ph problems with any water less than about 6.0. It is in regular Happy Frog soil and is a low feeder.
I recently gave it a tiny dose (1/4 strength) of CalMag figuring the plant is so old maybe it needs some supplemental nutes right? It didn’t like that at all. Even that tiny dose gave me slightly N burned tips.
Despite the slightly N burned tips, the plant is slowly eating itself from the bottom up. Distinctive looking leaf damage turned upwards. Strong sun or heat greatly increases these effects, so it seems to be linked to transpiration. That being said the plant is growing quite healthy, but something is obviously wrong.
I am thinking about amending the Happy Frog with some dolomite lime. Maybe even top dressing a little in.
Another thing to mention is my humidity is wildly low. Like 30%. I am not sure if that is doing anything either.
I always appreciate the advice I get from you guys. Thanks for taking the time to read this and any help.
Early and late damage.
Lower leaves on smaller branches are affected as well.