Perfect Grass is the only resistant grass that grows in all seasons, everywhere, on all surfaces, even in shade or on concrete! Thanks to a selection of highly resistant seeds, this grass is able to grow in the most difficult conditions. It is also resistant to temperatures from -30°C (extreme cold) to +40°C (high heat) and to heavy foot traffic. Optimal germination temperature: 18°C. Growth time: 5 to 10 days. Composition: 50% Perennial English Ryegrass - 40% vermiculite - 10% N32 P0 K0 fertilizer. A 1kg bag covers 62m2 of lawn for overseeding and 31m2 for complete lawn seeding.