The most common grasses in this category are Kentucky bluegrass, perennial ryegrass, tall fescue, and fine fescue. You’ll often see these seeds blended together for different needs and uses, such as high-traffic areas or lawns with sun and shade. Cool season grass types. GreenView Fairway Formula Kentucky Bluegrass Blend Grass Seed. Kentucky Bluegrass. GreenView Fairway Formula Perennial Ryegrass Grass Seed Blend. Perennial Ryegrass. GreenView Fairway Formula Tall Fescue Sun & Shade Grass Seed Blend. Tall Fescue. Cool Season Grasses are lush and beautiful even through chilly weather and hard frosts; you’re even likely to see their green blades popping up through the snow.