Mentha longifolia

Family: Lamiaceae · Type: perennial · Not Native

Horse mint is a naturalized perennial found in southern California and the Transverse Ranges in moist fields and disturbed areas at elevations below 300 meters. Flowering from July to October, this plant produces white to pink or violet flowers in dense spike-like clusters. Growing with erect, grayish-white hairy stems 30 to 100 centimeters tall, it spreads readily in moist environments. Its lance-oblong leaves are 1.5 to 7 centimeters long, with serrated edges and tapered bases that provide a distinctive aromatic appearance. The plant's soft, canescent stems and variable flower colors make it a notable introduced species in California's landscape.

Habitat: Moist places, fields

Bloom period: Jul-Oct

Elevation: < 300 m

Bioregions: SCo, TR, cultivated elsewhere

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.