Specifications include, but are not limited to: Landscaping professional shall provide and install Ohio wildflower perennial seeds in three areas, each approximately 40 feet by 40 feet, for a total of 4,800 square feet. The areas for the seed to be installed are on a slope. Work shall include preparing the area for the seeds, spreading the seeds, and protecting the seeds and soil as necessary due to the sloped surface. Ohio wildflower perennial seed mixture shall contain the following species at a minimum: Echinacea purpurea (Purple Coneflower), Heliopsis helianthoides (Ox Eye Sunflower), Desmanthus illinoensis (Illinois Bundleflower), Coreopsis lanceolata (Lanceleaf Coreopsis), Dalea purpurea (Purple Prairie Clover), Rudbeckia hirta (Black-eyed Susan), Monarda fistulosa (Wild Bergamot), Asclepias tuberosa (Butterfly Milkweed), Asclepias syriaca (Common Milkweed), Solidago rigida (Stiff Goldenrod), Ratibida pinnata (Yellow/Grey-headed Coneflower), Gaillardia aristata (Blanket Flower), Vernonia noveboracensis (New York Ironweed), Zizia aurea (Golden Alexanders), Erynigium yuccifolium (Rattlesnake Master), Aster pilosus (Frost Aster), Asclepias incarnata (Swamp Milkweed), Dalea candida (White Prairie Clover), Solidago speciosa (Showy Goldenrod), Boltonia asteroides (False Aster), Aster laevis (Smooth Aster), Solidago nemoralis (Dwarf Goldenrod), and Aster novae-angliae (New England Aster). OPN Seed, Ohio Pollinator Oasis Native Seed Mix or approved equal.