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Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Sun Exposure
Sun to Partial Shade
Foliage
Herbaceous
Foliage Color
Height
6-8 ft. (1.8-2.4 m)
Spacing
4-6 ft. (1.2-1.8 m)
Hardiness
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)
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Where to Grow
Danger
Handling plant may cause skin irritation or allergic reaction
Bloom Color
White/Near White
Bloom Characteristics
Bloom Size
Bloom Time
Mid Summer
Late Summer/Early Fall
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
From woody stem cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
Direct sow as soon as the ground can be worked
From seed; direct sow after last frost
Scarify seed before sowing
Seed Collecting
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds
Wear gloves to protect hands when handling seeds
Properly cleaned, seed can be successfully stored
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