<p>Silvopasture systems can provide forage and environmental benefits while achieving similar livestock production goals as open pastures. However, in the Midwestern USA, there is little guidance available to select appropriate silvopasture forage mixtures and what management practices will suppress weeds and improve forage establishment and production. Experiments were conducted at two locations to evaluate the establishment and productivity of spring seeding of four forage treatments and the effect of suppressing existing understory vegetation with glyphosate in the fall prior to seeding on establishment. Forage treatments consisted of orchardgrass alone or in grass or grass-legume mixes that included perennial ryegrass, meadow fescue, smooth brome, red clover and white clover. Glyphosate application reduced cover of unwanted understory plants and increased cover of planted grasses 1, 3, and 13 months after planting. Glyphosate application also increased forage mass almost five times (140 g m⁻²) compared to non-treated plots (30 g m⁻²) 14 months after planting. Orchardgrass seeded alone had greater forage mass and less weed biomass than mixes containing legumes when comparing the cumulative total of three harvest events during the second growing season. Results suggest farmers should conduct weed management before spring planting and addition of forage species to orchardgrass did not improve forage biomass and cover.</p>