Zone 10 · Flossflower
Planting Flossflower in Zone 10
Ageratum houstonianum
✅ Flossflower thrives in zone 10 (hardy 2–11)
Can I plant today?
⏳ Not the right window
Flossflower has a specific planting window in zone 10. Check back in spring.
Evaluated for April 27, 2026 ·
Zone's last frost
around January 15
Zone's first frost
around December 15
Bloom window
June – October
Peak bloom
July
Sun required
full sun, part sun
Mature height
12"
Spacing
9" apart
Type
annual
How to plant Flossflower in zone 10
Transplant after last frost. Fluffy clusters hold color all season; deer-resistant.
💡 In zone 10, start seeds indoors around January — about 6 weeks before your last frost.
Pair with these for continuous bloom
Flossflower peaks in July. These companions keep your bed in color before and after.
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