Hello,

Totally new to gardening and I would really appreciate your advice

I'm growing a zucchini in a pot. I've noticed some leaves turning yellow and then they get brown spots on them (see pictures). The brown spots were crunchy. I've cut off those leaves, but now the edges of the remaining leaves are turning dark brown. The brown is just starting on the edges, if you look really closely in the pictures you can see. I think there is also some white stuff (powdery mildew)? But it's very, very little white stuff. I'm mainly concerned about what's making the leaves so yellow and brown! I've already cut quite a few off or t

hey have died...

I think my watering is adequate and I never let the put get dry, but at the same time, it is never soaking, dripping wet. There is good drainage at the bottom.

Any advice is greatly appreciated.