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Irrigation for Regular Maintenance
Zinnias can withstand moderately dry soil conditions but do better with supplemental watering. In general, zinnias typically need 1 inch of water once every five to seven days. However, check soil moisture depth to ensure you're providing enough irrigation.
Thereof, can you overwater zinnias?
Supply at least an inch of water every week during dry, hot weather. When watering, soak the soil so that it is moist, but not soggy. Never over-water because this will cause water-logging. Avoid watering the foliage, because zinnias are susceptible to mold and fungal problems if the leaves are left wet.
Simply so, how do I take care of my zinnias?
How to Care for Zinnias
- Maintain moderate soil moisture and fertilize lightly to maximize growth and blooms.
- After zinnias flower, cut off the old flowers (a process called “deadheading”) to encourage more flowers to form.
- Zinnias are annuals and will die with the first fall frost.
Zinnias dying. A: Zinnias can be prone to several bugs as well as the most common problem -- powdery mildew, which is a disease that turns the leaves whitish, then brown. The holes could be due to Japanese beetles or to a couple of other smaller beetles that sometimes eat zinnia leaves.