Tecoma stans var. angustata is a small tree or large shrub native to Texas and New Mexico. It is easily distinguished from Tecoma stans by its much narrower leaves and smaller height, reaching only 10 feet (~3 meters) in height. It is hardy to 10° F (-12° C) and will live in USDA Zone 7, where it is considered a tender perennial. It makes a great container plant because its size is easily controlled by pruning.
Blooming Time: From June until first frost, the plant is adorned with showy, bright yellow flowers that are up to 2 inches (5 cm) across by 2 ½ inches (6 cm) long.
Culture: Tecoma stans var. angustata need full sun to partial shade with warm temperatures. In containers, we use a soil mix consisting of 2 parts loam to 1 part sand to 1 part peat moss. The plant should be allowed to dry in between waterings and should be fertilized weekly. When grown outside in Zone 7, they don't need very much water once they are established, but with regular water and fertilizer they tend to bloom better during the hot summer months. One needs to keep the old blooms trimmed off whether in container or in the ground because they are prolific seed producers and very easily become weedy. During the winter months, plants in containers should be allowed to go dormant and stored at 40° F (5° C).
Propagation: Tecoma stans var. angustata is easily propagated from cuttings taken in spring or by seed. Seeds germinate in 14-21 days at 72° F (22° C).
Tecoma stans var. angustata was featured as Plant of the Week June 14-20, 2002.
Guide to Past Plants-of-the-Week:
Cal's Plant of the Week was provided as a service by the University of Oklahoma Department of Microbiology & Plant Biology and specifically the late Cal Lemke, who used to be OU's botany greenhouse grower and an avid gardener at home as well. If the above links don't work, then try the overview site. You may also like to look at the thumbnail index. ©1998-2012 All rights reserved.