Half-hardy annual plants grow vines up to 20 feet
Rare white-flowered variety
Can be grown in containers
Needs a trellis or surface to climb
Prefers a sunny area
(Cobaea scandens) This sizeable climbing annual produces large bell-shaped flowers on vines up to 20′. Rare white-flowered variety. Multiple tendrils grasp easily to rough surfaces like stone walls or a trellis. Can also be grown in large pots. Plants prefer sunny areas and a light rich soil. Half-hardy annual.