Zone 9 · Black-Eyed Susan Vine
Planting Black-Eyed Susan Vine in Zone 9
Thunbergia alata
✅ Black-Eyed Susan Vine thrives in zone 9 (hardy 2–11)
Can I plant today?
⏳ Not the right window
Black-Eyed Susan Vine 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
July
Sun required
full sun, part sun
Mature height
96"
Spacing
18" apart
Type
annual
How to plant Black-Eyed Susan Vine in zone 9
Transplant after last frost against a small trellis or railing. Perennial in zones 10-11.
💡 In zone 9, start seeds indoors around January — about 6 weeks before your last frost.
Pair with these for continuous bloom
Black-Eyed Susan Vine peaks in July. These companions keep your bed in color before and after.
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