University of Illinois Extension
Directory of Annuals - Gardening with Annuals - University of Illinois Extension

Directory of Annuals

Rudbeckia
Rudbeckia hirta

<em>Rubbeckia hirta</em>
Rubbeckia hirta

Quick Profile

Exposure
Full Sun
 
Mature Height
18 - 36 Inches
 
Soil Conditions
Moist, Well-Drained
 
Bloom Color
Bi-color
Orange
Yellow
 
Bloom Season
June - October
 
Hardiness
Tender Annual
 
Size
Medium
 

Features

Large daisy-like flowers on compact plants. Good for the cut flower garden.

Culture

Full sun in well-drained moist soil

Cultivars

Becky Series - 8-10 inches tall

'Cherokee Sunset' - 30 inches tall with fully double flowers

'Indian Summer' - 36 inches tall with large flowers

'Autumn Colors' - 20 inches tall 

'Toto Series - 8-10 inches tall

'Prairie Sun' - 36 inches tall

'Sonora' - 20 inches tall

Notes

Very colorful display of daisy-like flowers. This rudbeckia tends to decline when the weather gets hot and humid. These rudbeckia (R. hirta) are not considered perennials in northern gardens. Treat them as annuals. Attracts butterflies. Good cut flower.