Zone 10 · Flossflower
Planting Flossflower in Zone 10
Ageratum houstonianum
✅ Flossflower thrives in zone 10 (hardy 2–11)
Can I plant today?
🌸 Flossflower should be blooming now!
Plants set out in early season are peaking. Deadhead to keep blooms coming.
Evaluated for June 13, 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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