Peaceful Valley Organic Premium Soil Builder Mix - Raw Seed

Cool-Season Nitrogen Booster

Brand: Peaceful Valley    Item Number: SCM121


In Stock! Ships from Northern CA.


In Stock! Ships from Northern CA.

Buy Big, Save Big! As low as $1.09 each!
  • Buy 10 for $2.09 each
  • Buy 50 for $1.49 each
  • Buy 500 for $1.29 each
  • Buy 1000 for $1.19 each
  • Buy 2000 for $1.09 each


Planning on buying multiples of the largest tier of volume discounts listed above, or need a custom mix? Call us for a quote at (888) 784-1722!

We developed this mix especially for vegetable rotations and general cool-weather cover cropping. Soil Builder is not filled with cheap grasses like other mixes. Contains the highest-yielding winter-hardy legumes with cayuse oats added to stabilize the soil, and to nurse and scaffold the vetches.

  • Application Rate: 3-5 lb/1000 sq ft, or 70-120 lb/acre at a depth of 3/4 to 1 in
  • Inoculant: Pea Vetch or Garden Combination Inoculant (sold separately)
  • Germination: 5-10 Days
  • Plant Height: 4 - 6'
  • Uses: Extraordinary yields of Nitrogen (up to 290 lb/acre) and organic matter (up to 49 tons/acre). Weed competition and provides excellent habitat for beneficial insects.
  • Facts to Note: Seed in September or October. In coastal or cool summer zones, Soil Builder can be spring-planted.

Formulation may vary based on availability. Currently the mix contains: Bell Beans, Biomaster or 4010 Peas, Purple Vetch, Hairy Vetch, Common Vetch and Cayuse or Monida Oats.


  • Adds Significant Organic Matter
  • Cold Hardy, Down to 25°F
  • Fixes Nitrogen
  • Germination in Soils < 45°F
  • Good for Forage/Hay
  • Good for Weed Competition


Life Cycle Annual Plant Height Tall, over 36"
Organic Status Certified Organic Product Planting Time Fall
Seed Variety Mix
Life Cycle Annual
Plant Height Tall, over 36"
Organic Status Certified Organic Product
Planting Time Fall
Seed Variety Mix

Useful Information

Planting & Growing Guide

Videos & Articles



What You May Need

Shipping Information

Shipping Weight: 1.10 lbs. Dimensions: 8"L x 5"W x 1.5"H


Excellent as alway

Obviously I haven't yet planted the cover crop for winter, but the package arrived promptly and in good shape; the seed looks good.

Reviewed by on

Great fertility builder.

I try and rotate my beds with one cover crop of this each year and it really seem to help my soil fertility.

Reviewed by on

couldn't be happier

Quick shipping and great variety of nitrogen fixers :) It's hard to find organic seed mixes so this stuff is awesome!

Reviewed by on

wild carrots?

This must of had some weed seeds mixed in because I now have a huge crop of wild carrots.

Reviewed by on

An excellent choice for dynamic soil improvement

This premium soil builder mix has the perfect blend of legumes and grain to give your soil the boost of fertility it needs come Spring time. I sow mine in the fall here in the Bay Area of CA. I let it grow through the beginning of Spring, and then cut it at its base near the soil surface. I haul the green matter to build a compost pile and let the root matter decompose in place without disturbing the soil. I find it helpful to sprinkle on some good quality compost afterwards and then drench the area with an application of compost tea. This facilitates the magic of fertility quickly and effectively!

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