Quadriloculare is a highly invasive perennial shrub. This species produces large amounts of viable seed and can also grow rapidly by sprouts and root suckers. ... On these islands, this species grows commonly along roadsides, waste grounds, disturbed areas, and is cultivated in yards and gardens.
This shrub prefers moist, well-drained soil; however, once established it's quite drought tolerant. Whether you are using it as a shrub or a small tree, starburst clerodendrum requires only minimal pruning to be shaped.
Do a hard pruning after the spring bloom, if you like, to keep the size in check and encourage full lush growth.
Shooting star clerodendrum (Clerodendrum quadriloculare)Treesearch Farms Inc. A: This species is listed as cold-hardy to zone 8; we're in zone 9 with minimum temperatures in the 20-to-30-degree range.
Toxic to animals Small to medium-sized shrub, able to grow up to 2 - 5 m tall. Simple leaves, ovate to oblong in shape, green on the top and purple underneath, measuring about 5 - 10 cm long. Tubular flowers borne on terminal inflorescence, each flower has 5 white petals with a pink tube. Fruit is a drupe.