In Zones 7 to 10, pre-seed the garden or outdoor containers in the fall for early spring blooms.
Ht. 24–28"
Start Inside: RECOMMENDED. Feb1
Start Inside: Autumnal Equinox - Sept 22. In mild climates, sow 8 to 10 weeks before transplanting outside in fall or winter for early spring bloom. For continuous bloom, sow every 2 to 3 weeks.
DTG: 7–14 days
Seed Depth: Press into surface
https://www.monticello.org/sit...
For buds to set, the temperature must be below 60°F.
Plants require full sun to light shade, and average to rich soil that drains well. The ideal pH is near neutral, or about 6.8 to 7.5.
https://www.johnnyseeds.com/fl...
Seed Spacing: A group of 4 seeds every 6"
Thinning: When 1" tall, thin to 1 every 6"