Cuphea hyssopifolia Kunth

Common Name: False Heather, Hawaiian Heather, Elfin Herb, Elfin Plant, Cuphea, Clammy Cuphea, Corail, Tarweed, Mexican Heather
Cuphea hyssopifolia is a small evergreen shrub native to Mexico. An erect to spreading, low-branching, compact, free-flowering subshrub with finely-textured leaves. eaves simple, subsessile (with slight stalks), opposite, pinnately-veined, oblong, sometimes elliptic, glossy, medium to dark green, 10 to 30 mm long, 1.5 to 4 mm wide, with pubescent (covered with hair) undersides. It is moderately salt-tolerant, adaptable to various soils with good drainage in full sun and tolerates high summer heat and some drought but grows best with regular moisture. It is a perennial, but is generally grown as an annual. The small lavender-purple flowers appear singly in the leaf axis along the stem and bloom profusely till frost. The plant tends to grow to 2 feet tall and wide in a rounded shape with multiple stems and is evergreen in warm climates or indoors. Use as a border plant, along walkways or as a container plant on patios or indoors.

References
1. https://www.nparks.gov.sg/florafaunaweb/flora/1/8/1896
2. https://plants.ces.ncsu.edu/plants/cuphea-hyssopifolia/