Skyblue Cluster Vine, also known by its scientific name Thunbergia grandiflora ... and can reach up to 4 inches in diameter. The flowers have a trumpet-like shape and are often fragrant ...

Grandiflora hybrids rise up to 6 feet tall, with classic trumpet-shaped blossoms measuring about 6 inches across. These hybrids feature 12 to 20 flowers per stem. Dwarf grandiflora hybrids grow up ...