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Creating a drought-resistant garden in Zone 7 is a sustainable way to reduce water usage and maintain a lush landscape even during dry seasons. Ground covers are an excellent choice for filling space, preventing weeds, and adding visual interest. This guide provides practical tips on selecting and growing drought-resistant ground covers suitable for Zone 7.
Understanding Zone 7 and Drought-Resistant Plants
Zone 7, as defined by the USDA Hardiness Zone Map, experiences minimum temperatures between 0°F and 10°F. Plants suitable for this zone must tolerate both cold winters and dry conditions. Drought-resistant ground covers are adapted to survive with minimal water, making them ideal for sustainable landscaping in Zone 7.
Choosing the Right Ground Covers
- Sedum (Stonecrop): Low-maintenance succulent that thrives in dry, rocky soils.
- Ice Plant (Delosperma): Bright, colorful flowers with drought tolerance.
- Blue Fescue (Festuca glauca): Ornamental grass with silvery-blue foliage.
- Lavender (Lavandula): Aromatic herb that tolerates dry conditions and poor soils.
- Sedum ‘Autumn Joy’: Hardy sedum with attractive foliage and late-season flowers.
Preparing Your Garden Site
Proper site preparation ensures successful establishment of drought-resistant ground covers. Choose a location with full sun exposure, as most drought-tolerant plants prefer ample sunlight. Improve soil drainage by adding sand or gravel if necessary. Avoid overly fertile soils, which can encourage excessive growth that requires more water.
Planting and Establishment
Plant ground covers in early spring or early fall for optimal root development. Space plants according to their mature size to prevent overcrowding. Water thoroughly after planting to help roots establish. Once established, reduce watering to encourage drought tolerance.
Maintenance Tips
- Watering: Water sparingly during the first growing season. After establishment, rely on rainfall and occasional deep watering during prolonged dry spells.
- Mulching: Apply a layer of gravel or small stones to reduce evaporation and suppress weeds.
- Pruning: Trim back dead or damaged foliage to promote healthy growth.
- Fertilizing: Generally unnecessary; if needed, use a light application of low-nitrogen fertilizer.
Additional Tips for Success
Monitor your ground covers regularly for pests and diseases, though most drought-tolerant plants are relatively pest-resistant. Consider companion planting with native plants to enhance biodiversity and resilience. Be patient; establishing a drought-resistant ground cover garden may take a season or two but offers long-term water savings and beauty.