Zone 3 · Black-Eyed Susan Vine
Planting Black-Eyed Susan Vine in Zone 3
Thunbergia alata
✅ Black-Eyed Susan Vine thrives in zone 3 (hardy 2–11)
Can I plant today?
✅ Start Black-Eyed Susan Vine indoors now
You're 4 weeks from last frost. Transplant after last frost against a small trellis or railing. Perennial in zones 10-11.
Evaluated for April 27, 2026 ·
Zone's last frost
around May 15
Zone's first frost
around September 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 3
Transplant after last frost against a small trellis or railing. Perennial in zones 10-11.
💡 In zone 3, start seeds indoors around March — 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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