As environmental concerns grow and water conservation becomes increasingly important, sustainable landscaping has emerged as both a responsible and cost-effective approach to outdoor design. In St. Louis, MO, where the climate includes hot, humid summers and cold winters, implementing eco-friendly landscaping techniques can reduce maintenance costs, support native ecosystems, and create resilient outdoor spaces year-round.
This guide explores sustainable landscaping practices tailored to St. Louis’s climate and soil conditions—offering practical tips and regional recommendations that benefit both property owners and the planet.
Why Sustainability Matters in Landscaping
Sustainable landscaping focuses on conserving resources, supporting biodiversity, and minimizing environmental impact. It incorporates techniques like:
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Native plant selection
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Efficient irrigation systems
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Soil health improvement
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Stormwater management
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Low-impact hardscapes
According to the U.S. Environmental Protection Agency (EPA), sustainable landscapes reduce runoff, filter pollutants, and improve energy efficiency by shading buildings and reducing the heat island effect.
Understanding St. Louis’s Climate and Soil
St. Louis falls within USDA Hardiness Zone 6b to 7a, meaning winter lows average between 0°F and 10°F. The region experiences:
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Hot, humid summers
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Variable rainfall (average 40 inches/year)
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Heavy clay soil in many areas, which affects drainage and root health
Sustainable landscaping in this region requires plant choices and techniques that tolerate seasonal extremes, retain moisture, and prevent erosion.
Native and Drought-Tolerant Plant Selection
One of the most effective sustainable practices is choosing native plants that are well-adapted to St. Louis’s climate. These plants require less water, resist local pests, and support pollinators.
Image credit: Horst Joachims via Pexels
Recommended native plants for St. Louis include:
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Purple coneflower (Echinacea purpurea) – Drought-tolerant and pollinator-friendly
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Little bluestem (Schizachyrium scoparium) – Ideal ornamental grass for erosion control
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Black-eyed Susan (Rudbeckia hirta) – Hardy perennial with long bloom time
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Serviceberry (Amelanchier spp.) – Small tree offering berries, flowers, and fall color
You can explore more regionally suitable plants using the Missouri Botanical Garden’s Plant Finder tool.
Smart Irrigation and Water Conservation
Water-smart landscapes reduce dependency on municipal systems and minimize waste. In St. Louis, this is particularly important during dry summer months and when navigating stormwater regulations.
Tips for efficient irrigation:
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Install drip irrigation instead of sprinklers for targeted watering
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Use moisture sensors to prevent overwatering
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Water early in the morning to reduce evaporation
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Mulch planting beds to retain soil moisture and suppress weeds
Rain barrels and cisterns can also help capture rainwater for landscape use, aligning with MSD Project Clear’s goals for reducing stormwater runoff.
Improving Soil Health with Organic Practices
Heavy clay soil is common in St. Louis and can lead to poor drainage and compacted roots. To improve soil sustainability:
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Incorporate organic compost to enhance structure and nutrient levels
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Aerate soil annually to improve water infiltration
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Avoid synthetic fertilizers, which can leach into waterways and harm native species
Healthy soil supports healthy plants and requires fewer chemical interventions, making it a cornerstone of eco-friendly landscaping.
Sustainable Hardscaping and Permeable Materials
Hardscapes (patios, walkways, retaining walls) play a major role in sustainable design when made from low-impact materials.
Consider:
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Permeable pavers that allow water to soak into the ground
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Natural stone from regional sources
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Recycled materials for gravel, edging, and decking
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Rain gardens that collect runoff from rooftops or driveways
These choices help manage stormwater, reduce flooding, and lower heat absorption in urban yards.
Partner with Big Bend Landscaping for Eco-Friendly Design
Implementing a sustainable landscape requires a thoughtful design, careful planning, and knowledge of local ecosystems. At Big Bend Landscaping, we specialize in creating custom outdoor living spaces that align with St. Louis’s climate and sustainability goals.
Whether you’re interested in native gardens, permeable patios, or low-maintenance solutions, our expert team is ready to bring your green vision to life—efficiently, beautifully, and responsibly.
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