The most striking blue flowered vine in the world, with a robust and twining habit producing long hanging clusters of 3" sky blue funnel shaped flowers from fall through spring, displayed throughout it's dense deep green foliage. Can be trellised or arbored to create a spectacular sight! Hardy to freezing. Can be used as a background shrub if allowed to sprawl at the rear of a bed. It's also pretty clambering up a mail box or lamp post.
Thunbergia grandiflora is similar to Thunbergia laurifolia
except that leaves are heart-shaped.