W. pulcherrima has caused mice to go to sleep. The toxicity of W. pulcherrima varies from high to zero toxicity even in the same plant at different times. Many people have eaten the berries for years without ill effects. More vigorous growth may be encouraged by occasional drenching with ocean water. No serious insect pests are known.
Seeds germinate within a month.
Propagation by cuttings can be enhanced with the use of a rooting hormone. Moderate to low.