Hey! This is your plant!
I know that Coco Coir is a very popular because of its high cation exchange capacity (CEC)–or ability to store and exchange nutrients. But if you don’t buffer that growing medium with calcium for strong cell walls and magnesium for chlorophyll production, I may turn yellow in protest. I can also tell you that too much sodium and potassium can cause overdosing, and that’s no bueno.So do me a favor and treat my coco coir or whatever growing medium you use with Cal/Mag. It ’s a delicious 12-2-12 product containing 6% Calcium and 3% Magnesium for consistently beneficial results.
I’ll thank you at harvest time!