Rudbeckia triloba - Key Growing Information

Bouquet of Rudbeckia triloba, a prolific, easy to grow, dependable, and drought-tolerant flower crop.
DAYS TO GERMINATION: 7-10 days at 70-75°F (21-24°C)

SOWING: Transplant - Sow 5-7 weeks before last frost. Cover seed lightly (1/64"). For best results, prechill for 30 days: Place seedling flats outside or in the refrigerator and keep moist for 30 days. After chilling, move flats into a warm location until emergence. Direct seed - Gently press seed into soil as soon as soil can be worked in early spring or fall. Pinching not required. Reseeds.

LIGHT PREFERENCE: Sun/Part Shade.

PLANT HEIGHT: 48-60".

PLANT SPACING: 18-24".

HARDINESS ZONES: Zones 3-9.

VASE LIFE: 10-14 days. Newly opened flowers might wilt when first harvested but will rehydrate and correct. More mature blooms that have been open for a few days will be firmer at harvest.

HARVEST: When blooms are completely open.

SOIL REQUIREMENTS: Average soil. Drought tolerant once established.

USES: Excellent cut flower, beds, and borders.

SCIENTIFIC NAME: Rudbeckia triloba

ALTERNATE NAME:
Brown-eyed Susan