Grassland Oregon

Committed to conducting research and serving growers throughout the U.S. and Canada, Grassland Oregon is focused on the improvement of cover crops, forage and turf. Grassland Oregon has been a trusted Mighty Mustard® dealer since 2013, working with us to increase cover crop awareness and education. For more information, visit or call (503) 566-9900.

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Preferred Seed

Based in Buffalo, NY, Preferred Seed is the premier supplier of cover crops, forage and turf seed to growers in the Northeast, and dedicated to supplying “the best possible products and services to our customers,” A trusted Mighty Mustard® distributor since 2017, Preferred Seed supplies a variety of other seed for cover crops, forage and

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L.A. Hearne Company

Known for their trusted expertise in cover crops, erosion-control seed, grains and other top-quality field seed, L.A. Hearne Company serves growers in California, the Southwest and Hawaii. L.A. Hearne was established in 1938 by Larry Hearne and is still owned and managed by the same family. As cover crop pioneers, L.A. Hearne introduced Mighty Mustard®

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