My Zinnias looked healthy until I recently notice a powdery, white substance on their leaves. What is wrong?
Zinnias get a fungus called “Powdery Mildew” due to too much moisture on and around the leaves. This could happen during a rainy stretch of weather or from being watered in the late afternoon by the gardener. The leaves just never get a chance to dry off. There are fungicides which can control this problem but there is no cure once it has affected the plants. Try to avoid getting water on the leaves by using a soaker hose to water or apply water in the morning, leaving enough time for the sun to dry the leaves off. Q: I started my Marigold seeds outdoors on April 20th to get a head start on the season. I am in zone 6b. They took longer than I expected to germinate. Now they don’t seem to be growing at all. What is wrong? A: In zone 6b, April 20th is too early to sow most annual flower seeds outdoors. Especially this year because it was cool and wet for so long. Annuals need higher temps to germinate and grow normally. In your zone, annual flower seeds should be sown in the beginning of
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