Many turfgrass species naturally grow well in shady areas, but growing dense, consistent, disease-free grasses in low-light areas has always been challenging. Researchers at Pure-Seed Testing developed turf trials under intense shade conditions, to determine which varieties tolerate low-light conditions the best. Varieties with a turf quality rating of 5.0 or higher for at least a year or more, which have survived multiple years in intense, deciduous shade, qualify for the shade tolerance icon.
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The Pure-Seed Testing, Inc., research facility in Oregon dedicates a large area to ongoing shade trials. Varieties are established under a dense canopy of trees, allowing researchers to identify those varieties that can perform well in low light. Since 2001, Pure-Seed Testing, Inc. researchers have rated tall fescue and fine fescue trials seeded and maintained under low-light conditions. The trials were maintained at a 2" mowing height and evaluations were made on a 1-9 scale, with 9 being ideal. Top-rated varieties are then used to breed new varieties with improved shade tolerance.
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