Rudbeckia Hirta. Black-eyed Susan is an easy to grow native of North America that was commonly seen in 18th century flower gardens. Bright yellow, gold, or mahogany flowers with a prominent dark brown center appear in mid-summer. The blossoms attract butterflies and the seeds that follow are a favorite of goldfinches!
Plants reach a height of 1-3' and are drought resistent. Rudbeckia Hirta can be grown as an annual or a biennial, is easy to grow from seed, and will self-sow onto open soil. Prefers full sun but is adapted to a wide range of light and soil conditions.
Seeds need a cold period to germinate. Place the seeds in a plastic bag with moist growing medium and place in the refrigerator for 30 days. Six-eight weeks before the last average frost date, sow seeds with a covering of 1/8" of germination mix. Keep moist as seeds take 7-14 days to germinate at 70 degrees. Seeds may also be sown directly into the garden when daytime temperatures are consistently 60 degrees.
USDA Zones 3-10.
Heirloom seeds are collected, cleaned and packaged by hand at Mount Vernon.