Thunbergia Grandiflora

Very rare, fast growing plant with huge butterfly shaped flowers, borne in clusters throughout the summer, in the most beautiful and unusual shade of lavender blue. Very suitable for the conservatory, porch or sunroom where its climbing habit will quickly fill the space. Hardy down to just above freezing, so it is ideal for overwintering in a cool greenhouse or conservatory. HHP.

How to Grow Thunbergia grandiflora from seed

Soak the seeds overnight and then sow 1-2 seeds in a small pot lightly covering with some potting compost. The seeds should be sown indoors 6 weeks before the last spring frost and a temperature of 65-75F should be maintained.

Place the pot in a bright, warm position and water regularly. Germination can take up to 30 days. When the seedlings are large enough to handle and the night time temperature if above 50F, plant out in the garden in semi-shade/full sun. Ideal grown on a fence or trellis but equally attractive in a large pot given some support. Water regularly.