Thunbergia alata 'Mixture' / Black Eyed Susan / Climber / Seeds

(Code: B&T_109)
In Stock
Add to cart
Thunbergia alata 'Mixture' / Black Eyed Susan / Climber / Seeds

A fast growing and fast flowering creeper with an attractive mix of orange, yellow and white flowers.   This plant is generally grown as an annual in the UK, sown in autumn or spring with first-year flowers from June all the way through to September. It will climb or trail to a height of 1.5m to 2m.  It can also be grown as a conservatory plant and may flower in winter/early spring if sown in summer.  Plants need protection from hard frost to survive year to year.

Black Eyed Susan grows best in hot sun to light shade and moist well drained soil.  It flowers best with regular feeding during flowering.  The plants need support to climb, looking good on trellises, arches and obelisks.  Also good for hanging baskets.


Pack of 40 seeds.  Sow in autumn or spring for summer outdoor flowering, or summer for winter indoor flowering.  Sowing instructions and a colour photo are printed on the packet.

See how your seeds are packed.

Hardiness Half-hardy perennial creeper/climber, generally grown as an annual in the UK
Flowers June to September
Height 1.5 - 2m
Spread 1-2m
Conditions  Sun to part shade and moist well drained soils, protected from frosts
Sow Sow autumn or spring for summer outdoor flowering and summer for winter/spring in-door flowering.  Sow the seeds 6mm deep in moist seed compost.  Keep at 20-25C and germination takes 2-3 weeks.  Transfer seedlings to pots when big enough to handle. Harden off seedlings before planting out.  
Grow Water and fertilize regularly.  This plant needs support to climb such as a trellis, arch or obelisk.  Plants die back to the ground after flowering and being frosted and can be removed.  In warmer gardens/winters, they will survive the winter and start growing again in spring. Conservatory plants survive for many years.  Trim back as necessary after flowering.  Plants often self-seed and young seedlings can be removed from the soil in autumn and protected over winter in a heated greenhouse before planting out in spring.