How to grow zinnia
Zinnia elegans
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The windows below are relative to your frost dates. Enter your ZIP for the calendar dates.
Open the planting calendarGrowing conditions
- Spacing
- 8 to 24 in apart
- Planting depth
- 0.25 in
- Sun
- Full sun
- Soil pH
- 5.5 to 7.5
Common problems
- powdery mildew
- alternaria leaf spot
- bacterial leaf spot
- cercospora leaf spot
- aster yellows
- aphids
- spider mites
- whiteflies
Sources
- University of Minnesota Extension: Zinnia
- Clemson Cooperative Extension, Home & Garden Information Center: Zinnia Insect Pests & Diseases (HGIC 2110)
Last updated 2026-06-11.