Lantana montevidensis (Trailing lantana)
Botanical names: Lantana montevidensis, Lantana sellowiana
Common name: Trailing lantana
Family: Verbenaceae
Origin: South America
USDA Plant Hardiness Zone Map
It was an early introduction elsewhere in the tropical world, where it soon escaped the confines of gardens and became a weed. Another variety L. sellowiana is also a trailing lantana with purple flowers, used as a ground cover. In Thailand, several colors are sometimes grafted onto a single trunk and the result trained into a standard. Lantana always prefers full sun and well-drained soil. Propagation is by air-layering or from woody cuttings.
Similar plants: Lantana montevidensis (Trailing lantana)
Link to this plant:
https://toptropicals.com/catalog/uid/lantana_montividensis.htm