Thunbergia grandiflora typically starts flowering in late spring, usually in April or May.
blue trumpet vine
Thunbergia grandiflora
Blue trumpet vine, or Thunbergia grandiflora, is a native evergreen climber with beautiful, large, blue flowers. Its blooms resemble trumpets, hence its common name. This lovely, twining plant has long, red-tinged stems, thick green leaves, and bright blue tubular flowers that bloom in summer and continue until early autumn. It's deciduous and easy to cultivate, so it makes a perfect addition to any garden. It works best when grown on a sturdy trellis, fence or arbor, and will reward you with a brilliant splash of colour year-round.
Cycle:
Perennial
Watering:
Average
Propagation:
Stem Propagation,Layering Propagation,Division,Seed Propagation
Hardiness Zone:
10 - 11
Flowers:
Lavender blue Flowers
Sun:
full sun,part shade
Leaf:
Yes
Leaf Color:
green
Growth Rate:
High
Maintenance:
Low
Drought Tolerant:
Yes
Invasive:
Yes
Tropical:
Yes
Care Level:
Medium
watering
Blue trumpet vine (Thunbergia grandiflora) needs to be watered frequently, about once a week or more during the hottest part of the summer, and less frequently during autumn and winter. When it's necessary to provide more water, it should be done in the morning and provided with enough water to reach the bottom of the root zone. The plant prefers being kept evenly moist, so check the soil moisture often and water accordingly. Overwatering is a common cause of problems, so be sure to let the soil dry out a bit between waterings.
sunlight
Thunbergia grandiflora, or blue trumpet vine, prefers full sun to part shade. The plant likes plenty of bright, direct sunlight, especially in the morning, as it helps to encourage strong and healthy growth. The blue trumpet vine also develops more flowers when it receives direct sunlight for a majority of the day. Though it can tolerate some prolonged shade, be sure that your blue trumpet vine gets at least 4-6 hours sunlight every day to ensure the best results.
pruning
Blue trumpet vine should be pruned in the early spring, just as new growth starts to emerge. Prune out any old or damaged stems, then focus on shaping the vine. Remove up to 1/3 of the length of the stems, cutting a few inches above a leaf node. The top of the vine should be kept to a manageable height, usually no more than 2-3 metres. Pruning in the early spring will encourage branching and more flowers for the season.
Season
Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering
