Zinnia marylandica, Zinnia hybrida, and Zinnia elegans
The Profusion and Zahara series of zinnia produce disease resistant mounds of color that last until frost when planted in late summer. The more traditional flowers of the Dreamland and Magellan series can also be enjoyed at this time of year while avoiding the disease issues that can show up in the spring. All have vibrant colors with the cool nights of fall on sturdy compact plants.
Exposure: Full sun
Size: Height — 12 to 18 inches
Plant type: Annual
Planting time: Late summer to early fall
Soil type: Adaptable to soil type if well drained and a variety of potting mixes
Suggested uses: Mixed borders, mass bed displays, and containers
Special notes: Very heat tolerant; do not overwater