Amy

This pattern is common for botrytis/gray mold, which thrives in cool, humid conditions and stressed plants. Remove and discard affected leaves or whole plants, improve airflow around the crown, and water early in the day so foliage dries fast. If it keeps spreading, apply a labeled fungicide that targets botrytis/gray mold and avoid overhead watering until the risk is gone.

Harvest when the plants reach full size and the foliage begins to slow in growth, with the stems firm and not overly soft. For the best eating/quality window, pick when the edible part (flowers/heads/fruits—depending on what you’re growing as “Amy”) has reached its full color and size for your variety, and before it starts to look over-mature or starts browning. If you’re unsure, harvest one trial piece—if it matches the expected texture (firm/tender, not tough), harvest the rest within the next few days.