Oklahoma State University

Time of Seeding

A general rule of thumb is to plant switchgrass during the same establishment window as corn; however, seeding date for switchgrass is somewhat variable and depends on the method. Seed germination for switchgrass occurs around 60° F and higher. Based on this, a normal time of seeding for switchgrass in the southern Great Plains is between April 1 and May 1. Nevertheless, it is not uncommon for dormant season plantings to occur from January through March. Seeding at this time is not for earlier germination, but rather an attempt to overcome some of the challenges of seed dormancy.

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