Many different species make great companion plants for fragrant tea olive trees. The species makes a wonderful addition to pollinator gardens, performing well with the likes of dogwood shrubs, coneflowers, and various Salvia species. Fragrant tea olives can grow into a rather large formation, so planting smaller species in front will provide more visual appeal and prevent any sun blockage. Osmanthus fragrans blooms primarily in the fall, so try planting spring and summer bloomers to balance out the beauty.