Types Of Drought-Tolerant Groundcovers For Nevada Landscapes

Nevada’s landscapes range from the high, cold valleys of the north to the hot, arid deserts of the south. Regardless of region, water conservation and heat tolerance are top priorities for any groundcover selection. This article surveys drought-tolerant groundcovers appropriate for Nevada, explains how to choose species based on site conditions, and gives practical, region-specific planting and maintenance guidance to establish long-lasting, low-water groundcover plantings.

Understanding Nevada growing conditions and groundcover requirements

Nevada presents three primary horticultural challenges: intense summer heat (especially in southern Nevada), long-term aridity with low precipitation, and widely variable soils that can be alkaline, rocky, or clay-heavy. Winters can be cold in northern and higher-elevation areas, so hardiness matters.
When choosing groundcovers for Nevada, prioritize the following traits:

Heat and drought tolerance once established.
Good sun tolerance (many sites are full sun), or shade tolerance for north-facing slopes and under trees.
Ability to grow in alkaline soils and tolerate poor drainage only where species-specific.
Low fertility requirements; excessive soil amendments can increase water demand and reduce survivability for native-adapted species.

Categories of drought-tolerant groundcovers and representative species

Groundcovers for Nevada fall into a few practical categories, each with different performance characteristics and landscape uses.

Succulent and stonecrop groundcovers (Sedums and iceplants)

Succulents store water in leaves and stems and are among the most drought-tolerant options when planted in well-drained sites.

Sedum spp. (stonecrop): Low-growing sedums such as Sedum spurium and Sedum album form mats 2 to 6 inches tall and spread rapidly. They tolerate hot sun, poor soils, and cold winters in many parts of Nevada, especially northern and higher elevation sites.
Delosperma spp. (ice plant): Delosperma cooperi and related cultivars bring vivid spring and summer blooms and form low, spreading mats. They thrive in southern Nevada and warm, well-drained slopes. Provide caution in clay or poorly drained soils as succulents rot in wet feet.

Practical takeaways: Use succulents on rock gardens, slopes, or in gravel beds. Plant in raised or amended pockets when existing soil is compacted.

Low aromatic herbs and lawn substitutes (Thyme, Lippia, Prostrate Rosemary)

These plants offer groundcover density, fragrance, and pollinator value with moderate to very low irrigation once established.

Creeping thyme (Thymus serpyllum and varieties): Tolerant of foot traffic, blooming in summer with tiny flowers that attract bees. Performs well in northern and many southern Nevada sites.
Lippia (Phyla nodiflora, also called carpet lippia or frogfruit): Forms dense mats, flowers nearly year-round in warm climates, and handles heat and limited irrigation well in southern Nevada. It can be used as a lawn alternative where some foot traffic is expected.
Prostrate rosemary (Rosmarinus officinalis ‘Prostratus’ or Rosmarinus cultivars): Evergreen, aromatic, and drought-tolerant once established. Works on slopes and as an informal groundcover in southern Nevada and milder valleys.

Practical takeaways: Aromatic herb groundcovers are great for pathways, sunny rock borders, and low-water landscapes that still need pet and pollinator-friendly plants.

Native mat-forming shrubs and subshrubs (Kinnikinnick, buckwheats, coast live varieties)

Native species often require the least water and maintenance after establishment and provide important habitat value.

Kinnikinnick (Arctostaphylos uva-ursi): A true mat-forming evergreen, excellent for cold northern Nevada and higher elevation sites. Tolerates dry, rocky soils and helps stabilize slopes.
Eriogonum spp. (mat-forming buckwheats): Several native buckwheats form low cushions with attractive seed heads and are long-lived and drought-adapted.
Mat-forming penstemons and certain ceanothus/ceanothus-like shrubs: Select locally adapted cultivars for rockier, well-drained sites.

Practical takeaways: Use native groundcovers where ecological restoration, pollinator habitat, or minimal irrigation are priorities. Check local native plant lists for species adapted to your elevation and soil.

Cool-season and spring-flowering mats (Phlox, moss phlox)

For northern Nevada and higher elevation gardens that receive strong spring sun and have well-drained soils, low phlox varieties offer explosive spring color and then go semi-dormant in summer.

Phlox subulata (moss phlox): Blooms profusely in spring, handles dry summers if planted in excellent drainage and full sun.

Practical takeaways: Use spring-blooming mats in mixed rock gardens and border fronts for seasonal interest; avoid heavy summer irrigation to prevent rot.

Region-specific recommendations: Northern vs. Southern Nevada

Nevada is not homogeneous. Tailor selections to the climatic zone.

Northern and high-elevation Nevada (colder winters, shorter growing season)

Best picks: Sedum spp., Arctostaphylos uva-ursi (kinnikinnick), Phlox subulata, mat-forming Eriogonum species, sedges and some native bunchgrasses for mixed groundcover.
Site notes: Choose plants rated to colder USDA zones and expect a short establishment season. Plant in spring after frost danger passes. Mulch thinly with gravel or coarse mulch to conserve moisture without trapping winter wet.

Southern Nevada (Las Vegas and Mojave desert climates, extreme summer heat)

Best picks: Delosperma spp. (ice plant), Lippia (Phyla nodiflora) in protected low-traffic areas, prostrate rosemary, drought-tolerant sages and selected lantanas with caution, and succulents in rock or gravel beds.
Site notes: Provide afternoon shade for marginal species, and prioritize deep, infrequent irrigation during establishment. Avoid species that require cool, moist winters.

Planting, irrigation, and soil management best practices

Appropriate installation and early watering schedule determine long-term success more than species choice.

Soil assessment and preparation:
Test soil alkalinity and texture. Most drought-tolerant groundcovers tolerate basic pH, but poorly drained clay must be addressed for succulents and many natives.
For succulents and alpine mat plants, create raised planting mounds or use amending to improve drainage. For native shrubs and herbaceous groundcovers, avoid overamendment; these plants perform best in the native soil or with minimal organic matter.
Planting technique and spacing:
Space plants according to growth habit: sedums and thyme 6 to 12 inches apart; larger mats like kinnikinnick or spreading rosemary 18 to 36 inches apart. Tighter spacing achieves quicker coverage.
Install slightly above grade for species intolerant of wet roots. Firm soil around roots to eliminate air pockets.
Irrigation schedule:
Establishment phase (first 6 to 12 months): water deeply but infrequently. Typical schedule is 1 to 2 times per week the first month depending on heat, then taper to every 7 to 14 days. Adjust frequency during extreme heat spikes.
Long term: shift most species to supplemental watering every 2 to 8 weeks depending on species, season, and soil. Use drip irrigation or soaker lines with individual valves to control run times precisely.
Mulch and weed control:
Use coarse gravel mulch for succulents and rock gardens to reflect heat and improve drainage. Use a thin organic mulch for native mats if desired, but avoid heavy mulch layers which retain too much moisture.
Control weeds early. Groundcovers are vulnerable to being crowded out by aggressive weeds during establishment.

Design uses and functional benefits

Drought-tolerant groundcovers provide multiple landscape functions beyond aesthetics.

Erosion control: Low, dense mats stabilize slopes and reduce runoff.
Lawn replacement: Certain low-traffic groundcovers like Lippia and creeping thyme can replace water-hungry turf in many areas.
Pollinator resources: Many groundcovers provide nectar and habitat for native bees and butterflies.
Heat mitigation and reduced irrigation: Low-water plantings cut water use and lower heat reflection from bare soil if thoughtfully integrated with permeable hardscape.

Maintenance and troubleshooting

Groundcovers are lower maintenance than turf but still require attention to thrive.

Prune lightly after flowering to maintain shape and to rejuvenate woody mat-forming shrubs.
Divide overcrowded mats (sedums, thyme, and some natives) every 3 to 5 years to maintain vigor.
Root rot: Reduce irrigation and improve drainage if plants show yellowing, wilting, and soft stems.
Pests and diseases: Watch for snails and slugs on low mats, especially where irrigation is overapplied. Native groundcovers generally have fewer pest issues than non-native pots.

Environmental cautions and plant selection ethics

Some vigorous groundcovers (e.g., certain ice plants and lantana cultivars) can naturalize beyond intended areas and outcompete native flora. Consider ecological impact when selecting non-native species and prefer locally native species where habitat restoration or wildlife value is a priority.
Also consider pets and children: some lantanas and other ornamentals have toxic berries, so choose accordingly for family-friendly plantings.

Practical planting plan example

This simple plan illustrates how to mix groundcovers for a south-facing slope in Las Vegas:

Upper slope (very well-drained, rockier): Plant Delosperma cooperi in pockets with 18 inch spacing to create drifts of color.
Mid slope (moderate soil, visible): Interplant Lippia nodiflora at 12 inch spacing as the primary lawn alternative.
Lower slope (near walkways): Use prostrate rosemary as a border element with creeping thyme as a footpath-safe groundcover in compacted panels.
Irrigation: Install three drip zones with individual controllers. Zone 1 (upper rock): minimal frequent soaking during first month, then monthly. Zone 2 (mid slope): 1x per week first month, taper to every 3-4 weeks depending on season. Zone 3 (lower): 1-2x per week first month, taper to every 2-6 weeks.

Final takeaways

Selecting the right drought-tolerant groundcover for Nevada begins with honest assessment of microclimate, soil, sun exposure, and desired function. Favor native or well-adapted species for the least maintenance and best long-term water savings. Plant with an emphasis on drainage for succulents and minimal soil amendment for natives. Use drip irrigation and a careful establishment schedule to transition plantings to low-water maintenance. With thoughtful selection and installation, drought-tolerant groundcovers can transform Nevada landscapes into attractive, resilient, and water-wise environments.