Zone 11 · Flossflower
Planting Flossflower in Zone 11
Ageratum houstonianum
✅ Flossflower thrives in zone 11 (hardy 2–11)
Can I plant today?
⏳ Not the right window
Flossflower has a specific planting window in zone 11. Check back in spring.
Evaluated for April 27, 2026 ·
Zone's last frost
essentially frost-free
Zone's first frost
essentially frost-free
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 11
Transplant after last frost. Fluffy clusters hold color all season; deer-resistant.
Pair with these for continuous bloom
Flossflower peaks in July. These companions keep your bed in color before and after.
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