How to Grow Drought-Tolerant Groundcovers (General Guide)

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Drought-Tolerant Groundcovers (General Guide)

Various species

groundcover

Drought-tolerant groundcovers are low-growing plants that spread horizontally to blanket soil, requiring minimal water once established. These plants are ideal for xeriscaping, erosion control, and reducing maintenance in hot, dry climates. They include sedums, creeping thyme, ornamental grasses, and succulents that thrive with infrequent watering.

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Example Drought-Tolerant Groundcovers (General Guide) timeline · Pittsburgh, PA (Zone 6b)

  1. Plant Drought-Tolerant Groundcovers (General Guide)

    Around Apr 17

    Near Pittsburgh's average last spring frost.

  2. Tend & protect

    Late spring–summer

    Watering, feeding, and pest-watch reminders.

  3. Harvest Drought-Tolerant Groundcovers (General Guide)

    Late summer into fall

    Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Drought-Tolerant Groundcovers (General Guide) dates for your own zip code.

Growing Conditions

☀️
Sun: Full sun (6-8 hours daily) for most; some species tolerate partial shade (3-4 hours)
💧
Water: Minimal water once established (6-12 weeks after planting). Water deeply but infrequently during establishment. Once mature, typically needs watering only during extended drought periods.
📏
Spacing: 6-18 inches apart depending on species and desired coverage speed inches
📅
Days to maturity: 60-120 days for coverage; full ground cover typically 6-12 months
🌱
Planting depth: Plant at soil surface or slightly deeper; sedums at surface level, spreading types 0.5-1 inch deep

Soil

Type: Well-draining sandy or gravelly soil; poor to moderate fertility
pH: 5.5-7.5 (varies by species)
Amendments:
Perlite or coarse sand for drainage Compost for soil structure Avoid rich amendments that promote lush growth

Growing Zones

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Varies by species; most thrive in zones 4-10 with excellent heat and drought tolerance in zones 7-10

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b

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Growth Stages

1

Establishment

6-8 weeks

Newly planted groundcover settling in, developing root system, modest leaf growth

Water regularly (weekly to bi-weekly) during first 6-8 weeks. Maintain consistent moisture without waterlogging. Remove weeds that compete for resources. Mulch lightly between plants.

2

Spreading

2-6 months

Plant sends out runners or lateral stems; coverage expanding across soil surface

Reduce watering frequency as roots deepen. Thin crowded growth if needed. Continue weeding until canopy closes. Light feeding optional—avoid nitrogen-rich fertilizer.

3

Maturation

Ongoing after 4-12 months

Dense canopy forming; runners filling intended area; plant becoming self-sufficient

Water only during drought or hot spells. Deadhead flowers if desired to redirect energy or encourage more bloom. Prune to shape or contain spread. Minimal fertilizer needed.

4

Maintenance

Years 2+

Fully established groundcover requiring minimal intervention; may flower seasonally

Water rarely except in extreme drought. Remove dead growth in spring. Edge beds if needed. Divide congested patches every 3-5 years if desired.

Companion Planting

Plan your garden →

Plant with:

Avoid planting near:

Moisture-loving plants (hostas, ferns, astilbe) Tall shade-casting plants that block sun Aggressive spreaders that outcompete (mint, bishop's weed)

Common Pests

  • Spray with strong water stream; use insecticidal soap if severe. Encourage beneficial insects.

  • Increase humidity with occasional misting during establishment. Use miticide only if infestation is heavy.

  • and

    Remove debris and hiding spots. Use copper tape barriers or diatomaceous earth. Hand-pick in evening.

  • Ensure excellent drainage; avoid overwatering. Remove affected sections. Improve air circulation.

  • Improve air circulation; avoid overhead watering. Remove affected foliage. Use sulfur dust if needed.

Uses

🏠

Erosion control and slope stabilization

Household

Dense root systems of groundcovers stabilize soil on hillsides and prevent runoff. They reduce maintenance costs compared to mowing slopes and protect against soil loss. [source]

🏠

Xeriscape and water-wise landscaping

Household

Drought-tolerant groundcovers eliminate the need for frequent irrigation in garden beds, reducing water consumption by 50% or more. Ideal for arid regions and water-restricted areas. [source]

🦋

Habitat and pollinator support

Wildlife

Flowering groundcovers provide nectar and pollen for bees, butterflies, and other pollinators. Dense mats offer shelter for beneficial insects and ground-nesting birds. [source]

🏠

Weed suppression

Household

A mature groundcover canopy blocks sunlight and prevents annual weed germination, reducing the need for herbicides and hand-weeding. [source]

🍳

Culinary herbs (species-specific)

Culinary

Many groundcovers—such as creeping thyme, oregano, and marjoram—offer edible leaves for cooking and tea. Harvest fresh foliage as needed. [source]

Harvest Tips

Groundcovers are grown for coverage, not harvest. Prune or shear growth as needed for shape and size control. Divide established plants in spring or fall to propagate and rejuvenate.

Fun Facts

  • 🌱 Many drought-tolerant groundcovers are succulents with fleshy leaves that store water, allowing them to survive weeks without rain. Some sedums can lose 90% of their water content and still recover.
  • 🌱 Creeping thyme produces aromatic oils that intensify in hot, dry conditions—the plant's stress response actually improves flavor and fragrance.
  • 🌱 Drought-tolerant groundcovers evolved in Mediterranean, desert, and alpine environments and often thrive in poor soil that would challenge water-loving plants, making them perfect for challenging landscapes.

Gardening Terms

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