Jonathan Green 3 lb. Touch Up Grass Seed Mixture. This quick germinating turf type perennial ryegrass seed mixture is suitable for small lawns ( 4000 sq. ft.) and can be applied in any season. It is drought and heat tolerant, making it ideal for sun or shade areas. The three dark-green perennial ryegrasses in this blend fill in bare spots and thicken the lawn quickly, while the beneficial endophytes provide natural insect resistance. Germinates in 7 - 10 days.