My white rhino is in promix hp 10 gallon smart pot , the pH is at 6.2 And I have been giving it foxfArm grow big at 1 tsp gal every third water. The fan leaves have spots of rust and light green coloration, new growth is light green. I think it might be calmag deficiency but want to be sure can anyone help. Thanks Mark.
Need help with my sick plant
- Thread starter MArk123
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...yeah, it does look like early Ca defc.,.... what's you water like for hardness? .... feeds have been light too, so feed more often, same dosage if you can or up it a bit more... just watch the tips to see if they start to yellow/brown out a little, telling you to ease off the nute conc. some... I'd do a foliar spray with a Ca/Mg product, use a wetting agent as well ( lots of choices out there, I like Coco-Wet); this will help it coat and stick way better instead of beading up; get tops and bottoms of leaves (more stomata on undersides),... keep it out of direct light until dry,... foliar is the fastest way into the plants, bypassing the whole root/vascular system,.. nothing is faster!
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..any idea how hard, like a EC/TDS reading, and pH? ...point is, overly hard water can cause cumulative build-up, load the medium with ions, and cause uptake problems... along with off pH in-pot,... probably not the case here as symptoms are mild,... but whether or not to tell you to start using a Ca-Mg supplement will hinge on this info about the water,...
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