I used miracle gro 24 8 16 with out know the damage it could've do and I was wondering what my plants nutrient problems are and what I could do I tested the ph, the nitrogen levels, and potassium levels. Therefore the ph was around 6, however the nitrogen and potassium levels were very high. The are yellowing and a little browning and curling a little. One plant is yellow on the outer edges of the leaves and other it is on the tips and spreading on the outer edges. The bottom leaves on both were completely yellow.