Thunbergia grandiflora, commonly called blue trumpet vine, clock vine, sky vine or sky flower, is a woody-stemmed, evergreen, tropical, twining climber. It grows to 15-30 long in frost free areas. The tubular flowers of the skyflower vine are a little deeper, about 3 in (7.6 cm) long, and are borne in drooping clusters. The most commonly seen varieties are sky blue to light violet although there is a white flowered type as well. Flowers bloom year round Leaves are leathery and have a distinctive elongated heart shape.
Thunbergia favors quite rich, organic soil and requires structural support. It may need to be cut back often to control direction or size or allow it to roam free if you have the space
Ideal to cover a fence or pergola.
Plants with thin leaves need daily watering and ones with thick leaves need watering 3-4 times a week. This will also depend on the season. Generally during the blooming period, plants love a lot of water. Try keeping the soil moist. During winters it is better to cut back on watering.
Keep the plants in a well drained soil with a drainage hole at the bottom. This will help to avoid over watering. Take care as to not leave stagnant water on top of the soil. Fertilise the plant once in 2-3 weeks during its blooming period. Do not fertilise it in winters.
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