Rudbeckia
Description
Rudbeckia flowers are known for their distinctive, elevated central discs that come in various shades of green, brown, and other hues, including the classic black-eyed Susans. These flowers are among the most straightforward, reliable, and prolific options for cut flowers. Besides being beautiful cut flowers, these hardy, low-maintenance plants thrive in heat and drought. They attract bees and butterflies with their vibrant blossoms, while their seed heads draw small birds during the fall and winter months. Belonging to the Asteraceae family, these plants are indigenous to both moist woodlands and dry prairies across North America.
Details:
Plant type: Perennial, some varieties are annual
Height: 16 to 20”
Site: Sun/Part Shade
Days to maturity: 100 to 120 days
Plant spacing: 9”
Kids, Pets and Deer: non-toxic to humans, toxic to cats
Indoor & Pots: outdoors in the ground or in beds
How to grow:
Transplant (recommended): sow seeds 5-7 weeks before moving them outdoors. Sprinkle a dusting of vermiculite but don't cover the seeds as light is needed for germination.
Direct seeding: gently press the seeds into the soil as soon as it is workable in early spring or fall.
Germination: 7-10 days at 70-75°F (21-24°C).
Where to Plant: Sun/Part Shade
Harvesting/Vase Life: Pick the flowers just as they start to bloom. Black-eyed Susans are known to turn the water dark and murky quickly, even when using floral preservatives. To prevent this, add a few drops of bleach to the water. They should last in a vase for 7 to 10 days.