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Thunbergia grandiflora

Blue Trumpet Vine, Bengal Clock Vine

Thunbergia grandiflora, commonly known as the Blue Trumpet Vine, is an evergreen climber grown for its impressive flowers. Showy, soft-blue flowers with a yellow centre are borne from late spring through until early autumn. It has twinning stems with arrow-shaped, mid green leaves. This climber will easily reach 2.5 m tall but is often contained to smaller sizes with trimming. Best results with this plant are achieved when it is planted in full sun or partial shade on a sheltered, well-drained site. In temperate areas this plant should be treated as an annual as frosts will damage or even kill the plant. The Blue Trumpet Vine is commonly trained on a trellis, included in tropical gardens, or planted anywhere its magnificent flowers can be appreciated.

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Suited to regions:Subtropical, Temperate
Plant type:Climbers
Height:2.50 m
Spread:2.50 m
Flowering time:Spring, Summer, Autumn
Tolerances:
Garden uses:Arches, Living areas, Pool areas, Screening
Garden styles:Backyard, City & Courtyard, Frontyard, Japanese, Modern, Tropical
Easy to grow?Yes
Maintenance requirementsSome
Growth rateMedium
Also known asBlue Trumpet Vine, Bengal Clock Vine
Sku15906

Thunbergia grandiflora Details

Thunbergia grandiflora, commonly known as the Blue Trumpet Vine, is an evergreen climber grown for its impressive flowers. Showy, soft-blue flowers with a yellow centre are borne from late spring through until early autumn. It has twinning stems with arrow-shaped, mid green leaves. This climber will easily reach 2.5 m tall but is often contained to smaller sizes with trimming. Best results with this plant are achieved when it is planted in full sun or partial shade on a sheltered, well-drained site. In temperate areas this plant should be treated as an annual as frosts will damage or even kill the plant. The Blue Trumpet Vine is commonly trained on a trellis, included in tropical gardens, or planted anywhere its magnificent flowers can be appreciated.

Questions and Answers

Have a question about Thunbergia grandiflora (Blue Trumpet Vine)? We are here to help.

When is the best time to plant thunbergia in Auckland? I want to buy but am unsure if now is the right time to plant.. would it be okay indoors and then planted out in spring?

Kia ora, The best time to plant Thunbergia grandiflora in Auckland is in spring, once the weather has warmed up and the risk of cold nights has passed. You can definitely buy one now and keep it indoors in a warm, bright spot. Just make sure it gets plenty of light and isn’t exposed to cold drafts. Then, plant it outside in spring when temperatures are more stable. If you do keep it indoors for a while, try to gradually acclimatise it to outdoor conditions before planting.

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