Zone 9 · Whirling Butterflies
Planting Whirling Butterflies in Zone 9
Oenothera lindheimeri
✅ Whirling Butterflies thrives in zone 9 (hardy 5–9)
Can I plant today?
⏳ Not the right window
Whirling Butterflies has a specific planting window in zone 9. Check back in spring.
Evaluated for April 27, 2026 ·
Zone's last frost
around February 15
Zone's first frost
around December 15
Bloom window
June – October
Peak bloom
August
Sun required
full sun
Mature height
36"
Spacing
18" apart
Type
perennial
How to plant Whirling Butterflies in zone 9
Plant in spring in lean, well-drained soil. Airy, long-blooming; drought-tolerant.
Pair with these for continuous bloom
Whirling Butterflies peaks in August. These companions keep your bed in color before and after.
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