Botanical Name: Dahlia pinnata
Native: Mexico and Central America
Hardiness: Perennial in USDA zones 7 to 10
Plant Dimensions: 5′ tall
Variety Information: 3″ semi- and fully-double flowers in an array of colors that may include: yellow, white, pink, red, magenta, plum, and orange.
Exposure: Full Sun
Bloom Period: Summer to frost (about 90 days from sowing), taking a break during heat in hot climates.
Attributes: Attracts Pollinators, Cut Flower, Edible Flower
When to Sow Outside: 2 to 4 weeks after your average last frost date.
When to Start Inside: RECOMMENDED. 8 to 10 weeks before your average last frost date. Ideal soil temperature for germination is 65°–70°F. Sow in biodegradable pots; roots are sensitive to disturbance.
Days to Emerge: 5–20 Days
Seed Depth: ¼”
Seed Spacing: 3 seeds every 18″ to 24″
Thinning: When 2 sets of leaves, thin to 1 every 18″ to 24″
Harvesting: For longest vase life, harvest flowers in the morning and choose flowers with just the outer 2-3 layers of petals open.