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Thunbergia Sunny™ Lemon Star

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Ball FloraPlant is the only source for in-demand unrooted thunbergia cuttings. This vigorous vine produces very large, brightly colored flowers all Summer. Sunny has a short crop time under warm conditions. Great for baskets, large containers and upright vining areas.

Culture Guide

Culture Guide

General Information

Height: 60-96" (152-244cm)
Spread: 16-24" (41-61cm)
Exposure: Sun

Propagation Guide

Tray Sizes (cells/tray): 50, 72, 84, 105
Rooting Hormone: Yes
Average Days with Mist: 7-12
Pinch: Yes
Average Propagation Time (weeks): 4-5
Comments: Stick immediately upon arrival. Spray immediately after sticking with a surfactant such as CapSil to help rehydrate unrooted cuttings. Use night mist for 7-8 days as needed. Avoid wilt during first 24-48 hours.


Soil pH: 5.8-6.2
Light Levels (fc): 5,000-10,000
Temperature Day: 71-85°F (22-29°C)
Temperature Night: 59-64°F (15-18°C)
Fertilization (ppm N): 175-225
No. of Pinches: 1-3
Plant Growth Regulators (S=spray / (D=Drench: Generally not needed.
Pests: Mites, whitefly, thrips, aphids
Diseases: Botrytis
Comments: Pinch two weeks after transplant and use a trellis for the plant to climb up. Thunbergia is a warm-season crop that prefers night temperatures above 60°F (15°C). Pinch regularly to shape.

Crop Time (weeks)

4- to 5-inch (10- to 13-cm) Pots, Quarts: 1 ppp, 6-8 weeks
6-inch (15-cm) Pots, Gallons: 1-2 ppp, 7-9 weeks
10- to 12-inch (25- to 30-cm) Tubs or Baskets: 4-5 ppp, 10-12 weeks