Soft light green leaves and bright yellow flowers best describe Thryallis. Thryallis is native to Central America. This medium texture shrub typical
Soft, light green leaves and bright yellow flowers best describe Thryallis. Thryallis is native to Central America. This medium texture shrub typically grows from 5 to 6 feet tall but can grow up to 8 feet tall if allowed. Hundreds of showy yellow flowers dot the shrub from summer through fall. For the best flowering effect, plant Thryallis in full sun with well-drained soil. Though pests are not generally a problem, sometimes caterpillars and mites may attack the plant. Thryallis has little salt tolerance and will whither when it does not receive enough water.
If exposed to a hard freeze, Thryallis will die back. However, a spring pruning will promote rejuvenation. This shrub is commonly used as a border accent, foundation, or specimen plant. When designing, keep in mind the yellow color. The yellow flowers make a nice contrast with reds, oranges, and purples.
