Rudbeckia Triloba
Rudbeckia triloba
Perennial in USDA zones 3 - 9. Rudbeckia triloba has smaller flowers than other rudbeckias, but in a much greater mass. In The Undaunted Garden, Lauren Springer Ogden writes, "The sheer profusion reminded me of fairy tales in which a person down on his or her luck is suddenly showered by thousands of gold coins from the sky." A Native American wildflower, and 1997 Georgia Gold Medal Winner.
Full sun. Blooms summer to early fall.
Height: 2' - 3' tall
Days to Emerge: 10 - 15 days
Seed Depth: 1/8"
Seed Spacing: A group of 4 seeds every 1'- 2'
Thinning: When 1" - 2" tall,
thin to 1 every 1' - 2'
When to sow outside: 2 to 4 weeks before average last frost, and as late as 2 months before first fall frost.
When to start inside: 6 to 8 weeks before average last frost. If started inside early enough, may bloom the first year.
Special germination instructions: Stratification, a moist/cold period to mimic winter conditions, will provide best results.
Artist: Carolyn Crawford