This shrub has upright woody stems that are topped with foliage and forms a clump. It has large mid green lanced-shaped toothed leaves and the 2-lipped greenish flowers appear in a terminal cluster during spring. This plant is not commonly found in cultivation.

Hardiness zones 9 to 10 

Lobelia giberroa is naturally found from the highlands in east Africa to northern Ethiopia growing to altitudes of 3,900m (10,000ft) in well-drained, moist fertile soils in an open sunny position. It is drought tender and moderately frost tolerant. 

Giant Lobelia is a shrub that is grown for its habit and is planted in large gardens or botanical collections as a specimen. It may also be grown in planter boxes or in large rockeries and is suitable for mountain gardens. It establishes from division in 2 to 4 years but may be difficult to obtain outside its native environment. ID 1279

Lobelia (low-BEE-lee-uh) giberroa (gib-er-ROW-ah)

Campanulaceae (kam-pan-yew-LAY-see-ee)
Bellflower and Lobelia Family