Annual Flower

When to Plant Zinnias in Virginia

The cut-and-come-again champion. The more you cut zinnias, the more they bloom. A cottage garden essential.

The Short Answer

Virginia's warm summers produce excellent zinnias from June through October. The crop's heat tolerance makes it one of the most reliable annual flowers in the state.

Virginia Frost Dates

Your planting dates depend on which part of Virginia you're in. Here are the frost date ranges by region:

Region Zones Last Frost (Spring) First Frost (Fall)
Mountain Virginia 5b, 6a May 1 - May 15 Sep 25 - Oct 10
Piedmont/Central Virginia 7a, 7b Apr 5 - Apr 20 Oct 15 - Nov 1
Tidewater/Coastal 7b, 8a Mar 20 - Apr 5 Oct 25 - Nov 10

Zinnias Planting Schedule for Virginia

Mountain Virginia (Zones 5b, 6a)

Average last frost: May 1 - May 15 · Average first frost: Sep 25 - Oct 10

Start Seeds Indoors
4 wks before frost
Transplant Outside
1 wks after frost
Direct Sow
1 wks after frost

Piedmont/Central Virginia (Zones 7a, 7b)

Average last frost: Apr 5 - Apr 20 · Average first frost: Oct 15 - Nov 1

Start Seeds Indoors
4 wks before frost
Transplant Outside
1 wks after frost
Direct Sow
1 wks after frost

Tidewater/Coastal (Zones 7b, 8a)

Average last frost: Mar 20 - Apr 5 · Average first frost: Oct 25 - Nov 10

Start Seeds Indoors
4 wks before frost
Transplant Outside
1 wks after frost
Direct Sow
1 wks after frost

Growing Zinnias in Virginia

State-Specific Growing Tips

Direct sow from early May. Full sun, base watering. Cut regularly for continuous blooms. Virginia's Piedmont and Tidewater heat produces vibrant zinnia colors.

Recommended Varieties for Virginia

Benary's Giant, Queen Lime, Profusion. Virginia Cooperative Extension recommends zinnias for summer gardens.

Common Challenges in Virginia

Powdery mildew in humid conditions. Japanese beetles. Brown marmorated stink bug occasionally.

Growing Tips

Water at the base to prevent powdery mildew. Cut flowers just above a leaf node to encourage more branching and blooms.

Companion Planting

Plant zinnias alongside these companions for better growth:

Tomatoes Peppers

The Bottom Line

Zinnias can be grown successfully in Virginia with proper attention to regional frost dates and local growing conditions. Timing varies across the state — Mountain Virginia gardeners work with a last frost around May 1 - May 15, while Tidewater/Coastal sees frost end around Mar 20 - Apr 5. Choose varieties suited to your region, amend your soil based on its specific needs, and monitor for the pests and diseases most common in your area. For exact dates based on your zip code, use our free planting date finder.

Related Guides

Zinnias Growing Guide National planting guide with all states Virginia Planting Calendar All plants for Virginia Zinnias in Alabama Alabama planting dates Zinnias in Alaska Alaska planting dates Zinnias in Arizona Arizona planting dates Zinnias in Arkansas Arkansas planting dates
Note: All dates are based on NOAA 30-year Climate Normals and represent historical averages, not predictions for any specific year. Always check your local weather forecast before planting frost-sensitive crops. Learn about our data sources.

Last reviewed: March 29, 2026

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