Koanophyllon villosum
 
Common Names Florida Keys Thoroughwort, Shrub Thoroughwort, Abre Camino
 
Zones 10B–11
 
A rare native shrub of South Florida, the Bahamas, and the Caribbean rim, Koanophyllon villosum is a long-lived perennial found in pine rocklands, hammock edges, and limestone thickets. Its fuzzy leaves and clusters of white to pink disc flowers attract butterflies and native bees throughout the warm season. Though modest in size, it plays a vital role in pollinator support and native habitat restoration.
 
Key Features
Growth Habit: Upright, loosely branched shrub; airy form
Height: Typically 3–6 ft (0.9–1.8 m); may reach 8 ft in ideal conditions
Leaves: Opposite; ovate to lanceolate; covered in fine hairs; margins entire or slightly toothed
Bark: Light gray to brown; smooth to slightly fissured
Flowers: Small disc florets; white to pale pink; no ray flowers; held in terminal clusters; bloom spring through fall
Fruit: Small dry achenes with pappus; wind-dispersed
Ecology: Attracts butterflies, bees, and beneficial insects; supports pollinator networks in fragmented habitats
 
Growing Conditions
Light: Full sun to part shade
Watering: Low; drought tolerant once established
Soil: Sandy, rocky, or limestone-based; well-drained; calcareous
Temperature: Sensitive below 35°F (1.6°C); regrows in spring
Humidity: High tolerance; thrives in subtropical climates
Propagation: Seed or cuttings
Tolerance: Heat, drought, urban conditions; low salt tolerance
 
Landscape Use Ideal for pine rockland restoration, pollinator gardens, and native borders. Use in mixed wildflower beds or as a soft-textured backdrop to showier natives. Pairs well with Senna mexicana var. chapmanii, Eupatorium capillifolium, and Passiflora suberosa.