What kind of grass produces a thin blade and has a deeper root growth?
The most drought tolerant grasses are the fescues and perennial rye grass (which have thin blades). Blue grass has a fine blade but is not suited to our Ontario summers. To encourage deep roots, mow the established grass high, 3 inches, and if watering, give the lawn 1 inch each time and only once every week or two. – response provided by Kitchener Master Gardeners Fescues also grow well in shade and generally have much deeper root system then Kentucky Blue grass when proper cultural practices are followed.