Q.Leaf Curl Zinnas
I live in southern arizona. Answers here say that overwatering is the cause. It says to let them dry out. I wasted every other day. If I don’t I get leaf wilt. I am getting leaf curl. The temps here are 100⁰to 110⁰ on anyday. What should I do.
Certified GKH Gardening Expert
They will definitely wilt in the heat. Water will not be the answer, though, unless the soil is completely dry down to about 3 or 4 inches.
Shade cloth during the heat of the day will be the best defense against wilting.
With proper shade and watering habits they will stay healthy.
Here are some articles that will help:
https://www.gardeningknowhow.com/ornamental/flowers/zinnia/growing-zinnia-flowers.htm
https://www.gardeningknowhow.com/garden-how-to/info/shade-cover-tips.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm