|
Hardy
perennial, excellent in borders or naturalized gardens. Leaves are
basal with long stalks, narrow to ovate, and mid-green, to 5" long.
2" to 3" wide showy, orange, daisy-like blooms from summer until
frost. Spreads rapidly to cover a large area. Durable, long-lived. 'Goldstrum'
a superb cultivar. Remove spent flowers to encourage additional
blooms. Flowerheads with high, conical centers of green disk
florets. |
|
 |
|
Family |
Asteraceae |
|
Genus |
Rudbeckia L. - Coneflower |
|
Species |
Rudbeckia hirta L. -
Blackeyed Susan |
|
Plant Category |
Annual, Biennial, and Perennial |
|
Height |
1 ft |
|
Width |
Undefined |
|
Shape & Orientation |
Semi-Erect |
|
Active Growth Period |
Fall, Winter, and Spring |
|
Bloom Time |
Late Summer to Late Fall |
|
Growth Rate |
Rapid |
|
Growth Form |
Single Stem |
|
Flower Characteristics |
Long lasting, showy |
|
Flower Color |
Orange |
|
Leaf Retention |
None |
|
Foliage Color |
Green |
|
Of Note |
Non-toxic |
|
Tolerances |
Deer, drought, heat and humidity,
pollution, rabbits, seashore, slope, wind |
|
 |
|
USDA Hardiness Zone |
3 to 9 |
|
AHS Heat Zone |
2 to 9 |
|
pH Range |
6 to 7 |
|
Frost-Free Days |
150 minimum |
|
Minimum Temperature |
-23
°F |
|
Water Range |
Dry to normal |
|
Precipitation Needed |
28 to 65 |
|
Drought Tolerance |
Medium |
|
Light Tolerance |
Full sun |
|
Shade Tolerance |
No shade |
|
Salinity Tolerance |
None |
|
Soil Texture |
Medium to fine |
|
Fertilization Needed |
Medium |
|
