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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.
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Texas native |
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Shade loving |
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Low maintenance |
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Height:4 in
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Spread:12 inches
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Spacing:12 in
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USDA Hardiness Zone 7a
Available Sizes:
Item |
Description |
HOR-HER-4FL |
418FLT HORSE, HERB |
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Characteristics & Attributes
Deer Tolerance
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Exposure
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Full Sun |
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Full Sun to Part Shade |
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Full Sun to Full Shade |
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Part Shade to Full Shade |
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Full Shade |
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Habit
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Soil pH Preference
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Water Needs
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Texas Native
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Tolerates Poor Drainage
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