Product Details
Lifecycle: Perennial
Mature Size: 2.5–3 ft tall × 18–24 in wide
Sun: Full sun
Soil: Average, well-drained
Bloom Season: Midsummer to early fall
Flower Color: White petals with copper-orange cone
Approximate Seeds Per Packet: 50
USDA Hardiness Zones: 3–9 (perennial)
Reliably overwinters in Zones 3–9
Dies back to the ground after frost and re-emerges in spring
In Zones 8–9, ensure excellent drainage to prevent winter crown rot
In colder climates (Zone 3), mulch lightly after the first hard freeze
Growing Guide
Sowing Depth
Surface sow and press gently into soil. Light aids germination.
Germination Time
10–20 days
Cold Stratification
Cold stratification improves germination rates. Provide 2–4 weeks at 35–40°F before moving to warmth, or winter sow outdoors for natural stratification.
Starting Indoors
Sow 8–10 weeks before last frost. After stratification (if used), maintain temperatures at 65–70°F and keep soil evenly moist.
Starting Outdoors
Direct sow in early spring or late fall. Fall sowing allows natural winter conditioning and often produces the most reliable germination.Placement & Cultivation
Plant in full sun in well-drained soil. Avoid overly rich conditions, which can cause floppy growth. Drought tolerant once established. Deadhead to extend bloom or leave seed heads standing for winter interest and wildlife support.
Final Spacing
18–24 inches
Water Requirements
Moderate during establishment; low once established.
Soil pH
Neutral to slightly acidic
Fertilizer
Incorporate compost at planting. Additional feeding rarely necessary.
Pests & Diseases
Generally resistant. Ensure good air circulation to reduce powdery mildew in humid climates.
Cut Flower Use
Harvest when petals are fully open and firm. Excellent fresh; seed heads may also be dried.

