Black-Eyed Susan Vine in Zone 11a & 11b
Thunbergia alata
When to plant black-eyed susan vine in zone 11b
Zones 11a and 11b share the same average frost dates in our data, so this page covers both.
Method: Start indoors: Start indoors from seed, then transplant outside. Black-Eyed Susan Vine needs a head start most zones can't give it by direct-sowing alone.
| Start indoors | Nov 20–Nov 27 |
|---|---|
| Direct sow / transplant outside | Jan 15–Jan 22 |
| Estimated bloom | Apr 25–May 2 (~100 days after transplanting) |
Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 3-8 ft.
Black-eyed Susan vine shares a common name with a plant it is not related to, and the confusion is worth clearing up first.
How black-eyed susan vine fits zone 11's season
Zone 11b is frost-free in this dataset, so frost is not what limits the calendar here. What you can plant, and when, comes down to summer heat and daylength instead.
Good companions
No standout companions recorded yet for Black-Eyed Susan Vine.
Where to buy black-eyed susan vine seeds
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing black-eyed susan vine" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 11b calendar · Full companion planting guide · Full plant profile · Plan your beds in the Garden Designer →
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Growing Black-Eyed Susan Vine in USDA zone 11b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
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