|
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Sun Exposure
Full Sun
Foliage
Herbaceous
Smooth
Foliage Color
Height
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Spacing
18-24 in. (45-60 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
|
Where to Grow
Danger
N/A
Bloom Color
Bright Yellow
Bloom Characteristics
Bloom Size
Bloom Time
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Blooms repeatedly
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; sow indoors before last frost
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
Properly cleaned, seed can be successfully stored
|