Timothy is a widely adapted, cool season perennial bunchgrass. It is considered hardy and reliable, but does not tolerate drought well.
Roots are wide spreading, shallow and fibrous with heaviest concentration of roots within top 7.5 cm (3 in.) of soil. Swollen bulbs or corms develop just below the surface and store nutrients for winter survival and regrowth after cutting or grazing.
It has strong tall stems up to 120 cm (47 in.) tall. Leaves are hairless and rolled during the bud stage. They are relatively wide, up to 12 mm, and flat.