Lepechinia fragrans is a shrub endemic to the California Channel Islands, found on Santa Cruz, Santa Rosa, and Anacapa islands in coastal scrub and chaparral. It belongs to the mint family but differs from most relatives by bearing its tubular flowers in open racemes rather than whorled clusters. The foliage is strongly aromatic when brushed, and the flowers draw hummingbirds and native bees.
Fall planting suits this shrub best, allowing winter rain to drive root development before summer drought arrives. Once established, it requires little to no supplemental water, which matches its natural summer-dry habitat. Sharp drainage is critical; soils that hold moisture through summer reliably cause root rot. It tolerates coastal conditions, sandy or rocky substrates, and mild frost to the lower edge of zone 9a. pH in the mildly acidic to neutral range is adequate. It integrates naturally into California native plant gardens, low-water residential landscapes, and habitat plantings designed to support pollinators.
Powdery mildew
White or grey powdery coating on leaves — usually starting on older growth in humid conditions or when nights cool.
Improve air circulation by thinning plants. Apply neem oil or potassium bicarbonate spray at first sign. Avoid overhead watering.
Phytophthora Root Rot
Wilting despite moist soil, yellowing leaves, stunted growth, and dark, decayed roots and crown tissue. Vines may collapse during hot weather.
Plant in well-draining soil and avoid waterlogging. Remove and destroy affected vines. Improve drainage with raised beds or amended soil and avoid overwatering.
Verticillium Wilt
Lower leaves yellow and wilt, often on one side of the plant, with brown streaking in the stem and crown tissue when cut open. Plants are stunted and decline over the season.
Remove and destroy affected plants. Avoid planting in soil that has grown infected tomatoes, peppers, or other susceptible crops. Rotate beds and improve drainage; there is no cure once a plant is infected.