Allendan Seed Company

What grass to forb ratio should I plant?

Your goals for the native planting, the location, and the soil moisture will help determine which grass to forb ratio to plant. If you are enrolling in a CRP program, there may be a specific ratio that you will need to follow. Allendan Seed offers various inventory seed mixes in the following grass to forb ratios: 30/10, 20/20, 10/30, and 10/40. A 30/10 seed mix equates to 30 grass seeds and 10 wildflower seeds per square foot. Here are some things to consider when choosing which grass to forb ratio to plant:

~30/10 Seed Mix     75% Grass & Sedges   25% Forbs & Legumes

          -Well suited for wet soils or difficult areas such as floodplains

          -Recommended for erosion control or sloped areas

          -Competes and establishes better in high weed pressure areas

~20/20 Seed Mix     50% Grass & Sedges   50% Forbs & Legumes

          -Balanced for wildlife diversity by providing both cover and food sources

          -Well suited for dry, mesic, or wet-mesic soils

          -Preferred in low to medium weed pressure areas

~10/30 or 10/40 Seed Mix     25-20% Grass & Sedges   75-80% Forbs & Legumes

          -High forb diversity for pollinators and monarchs

          -Well suited for mesic to dry soils

          -Preferred in low weed pressure areas due to slower establishment

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