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Calyptocarpus vialis (Horseherb)
Horseherb from Mortellaros

Horseherb

Calyptocarpus vialis

Horseherb is a native Texas groundcover valued as a low-maintenance turf substitute, especially in shaded landscapes. Naturally occurring in woodlands, parks, and along shaded walkways, this plant forms a dense mat of small, bright green leaves dotted with tiny yellow blooms from spring through fall. It adapts well to most Central Texas soils, including clay and limestone-derived types, provided drainage is moderate. Deer tend to ignore it, and it is non-toxic, making it a safe choice for residential and public spaces.


Horseherb thrives in partial to full shade and is especially useful where traditional turfgrasses struggle, such as beneath large oaks or in narrow side yards. While it can tolerate sun, plants in full-sun areas often enter summer dormancy during prolonged heat and drought, re-emerging when cooler or wetter weather returns. In shady sites, it can remain green year-round with occasional supplemental water. Its spreading habit allows it to fill in spaces between stepping stones, stabilize soil on gentle slopes, or serve as a living mulch beneath shrubs.


This groundcover stays low—typically under 4 inches tall—so it rarely needs mowing. It creates a dense, creeping mat that can spread indefinitely, rooting along stems as it grows. Once established, it is drought-tolerant and can often survive on rainfall alone in shaded areas. In Central Texas, Horseherb provides a soft, natural look and a wildlife-friendly alternative to thirsty, high-maintenance turfgrass lawns.

Texas native
Shade loving
Low maintenance
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Height:

4 in

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Spread:

12 inches

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Spacing:

12 in


USDA Hardiness Zone 7a

Available Sizes:

Item Description
HOR-HER-4FL 418FLT HORSE, HERB View Current Crop Photo

Characteristics & Attributes

Deer Tolerance
High
Exposure
Full Sun
Full Sun to Part Shade
Full Sun to Full Shade
Part Shade to Full Shade
Full Shade
Habit
Semi Evergreen
Soil pH Preference
Alkaline
Acidic
Water Needs
Low
Texas Native
Yes
Tolerates Poor Drainage
No