My Grapefruit and Skywalker in coconut substrat have brown leave’s edges, yellowed and also have some brown dots. I thought it is nutrient burn but now i think it is Potassium deficiency. I didn’t manage pH level so well last week (6.5 for coco - too high?) What do you think?
Solved
Week 7Leaves. Edges burnt
Leaves. Tips - Burnt
Leaves. Curl up