Light. Grows and blooms best in full sun; it tolerates partial shade but flowers less.
Water. Water often while it establishes, then only occasionally. It is highly drought tolerant once rooted.
Soil and feeding. Prefers moist, fertile, well-drained soil. Keep lawn grass away from the root zone.
Size. Usually 5 ft or more on a support; 12 ft is typical in gardens. Left alone it can reach 40 ft, so prune to keep it smaller.
Pruning. Needs only occasional pruning. It can also be trained as a shrub or small tree. Give vines a sturdy support.
Problems to watch. No major pests. Scale, mealybugs and sooty mold turn up at times.
Good to know. Takes 2–3 years to start blooming, heaviest February to June. The first big bloom may leave it nearly leafless. Wind tolerant and moderately salt tolerant. Protect young plants from frost.
Sources: UF/IFAS Gardening Solutions: Queen's Wreath · NC State Extension Plant Toolbox: Petrea volubilis
