While this perennial will survive in almost any Texas condition, good bed preparation and regular use of fertilizer will produce more blooms.

"The species name for the native L. horrida, refers to the pungent odor of the crushed leaves.

European interest in the New World lantanas was first excited by their reputed medicinal virtues. Spanish colonists used the "camaras," as they called them, to make infusions to be taken as medicine and used in baths. In some places such infusions are still used medicinally. The plant is poisonous to cattle and sheep, though usually not browsed by them. A decoction of the leaves has been used in Mexico...as a tonic for the stomach. In Sinaloa, the plant is a favorite remedy for snake bites. A strong decoction of the leaves is taken internally and a poultice of crushed leaves is applied to the wound. "

Taken from:

http://aggie-horticulture.tamu.edu/plantanswers/publications/lantana/lantana.html