Thunbergia, Bengal Clock Vine, Blue Sky Vine 'Variegata'

Thunbergiagrandiflora

Family
Acanthaceae (ah-kanth-AY-see-ee)
Genus
Thunbergia (thun-BER-jee-uh)
Species
grandiflora (gran-dih-FLOR-uh)
Synonym
Sun Exposure
Sun to Partial Shade
Foliage
Evergreen
Good Fall Color
Smooth
Height
15-20 ft. (4.7-6 m)
Spacing
15-18 in. (38-45 cm)
Hardiness
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Bloom Color
Light Blue
Lavender
White/Near White
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Tropicals and Tender Perennials
Vines and Climbers
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Blue-Green
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
By dividing the rootball
From leaf cuttings
From herbaceous stem cuttings
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

Fallbrook, California(5 reports)

Laguna Beach, California

San Jose, California

San Leandro, California

Belleview, Florida

Bokeelia, Florida

Englewood, Florida

Jupiter, Florida

Mulberry, Florida

Niceville, Florida

Ocala, Florida

Ocoee, Florida

Orange Park, Florida

Sarasota, Florida

Seville, Florida

Cordele, Georgia

Baton Rouge, Louisiana(2 reports)

Wilton, New Hampshire

Sumter, South Carolina

Belton, Texas

Humble, Texas

Santa Fe, Texas

Seabrook, Texas

Spring, Texas

show all

Featured Videos

Gardener's Notes:

6
positives
0
neutral
0
negative
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T
Wilton, NH | September 2015 | positive

This is a great annual here in New Hampshire, but it's also a squirrel buffet. They LOVE the blooms! Doesn't matter what what variety th...Read More

J
Belleview, FL | March 2014 | positive

I started my Bengal Clock Vine from a clipping a friend gave me. I cut it into 3 pieces and all 3 pieces rooted very quickly. The larger...Read More

C
El Lago, TX | December 2012 | positive

My purple flowering vine seems to be a Bengal Clock vine, aka Blue Sky vine. - thunbergia grandiflors, however mine has a plain green l...Read More

J
J
jnc
Sumter, SC | August 2005 | positive

I bought my Sky Vine at Lowes here in Sumter, S.C. It grew to at least 20 feet the first year , covering a built on trellis across the f...Read More

T
Cordele, GA | June 2005 | positive

I don't grow this, yet...but have watched it on a trellis here for the past five years. It seems to be quite hardy in zone 8A. It is gr...Read More

T
T
Santa Fe, TX (Zone 9b) | March 2005 | positive

We purchased this plant about 2 weeks ago. It had several pale blue flowers at the time. It has started growing and the newest blooms a...Read More

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