Peaceful Valley Summer Soil Builder Mix - Raw Seed (lb)

The Peaceful Valley Summer Soil Builder Mix is an excellent option for gardeners and small-scale farmers aiming to improve soil health naturally during the warm season. This annual cover crop blend includes nitrogen-fixing legumes like cowpeas, soybeans, and sunn hemp, along with fast-growing buckwheat. Together, these species work to suppress weeds, prevent erosion, and enrich the soil with organic matter and nutrients. Ideal for sustainable farming and regenerative garden practices, this mix supports a thriving soil ecosystem without the use of synthetic fertilizers.

Best planted in late spring or early summer once soil temperatures are warm, this mix thrives in full sun and well-drained soils. The dense canopy helps retain moisture and shades out unwanted weed growth. As the plants reach bloom stage, they can be mowed or turned under to begin decomposing and feeding the soil. In addition to boosting fertility, the flowers from buckwheat and sunn hemp attract beneficial insects and pollinators, contributing to the overall health of your garden or field.

Use this mix to rest garden beds, prepare new planting areas, or build long-term soil vitality between growing seasons. It’s a practical, low-maintenance way to cultivate better soil biology, structure, and fertility.

For other seasonal cover crops and green manure blends, explore our full collection of cover crop seeds.

Summer Soil Builder Mix – Warm Season Blend

Did You Know? Sunn hemp, included in this mix, can fix over 100 lbs of nitrogen per acre in just 60 days and provides excellent biomass for composting or tilling in.

• Application Rate: 50 lb/acre, or about 2-3 lb/1000 sq ft
• Inoculant: Cowpea Inoculant or Garden Combination Inoculant (sold separately)
• Germination: 5-10 Days
• Plant Height: 2'
• Uses: Some Nitrogen is fixed from the cowpeas but it is primarily used for a quick addition of organic matter when you are in between crops.
• Facts to Note: Till in when plants begin to flower, approximately 6 - 7 weeks after planting.

Contains: Buckwheat, cowpeas, sunn hemp, and soybeans.