Fig. 3-6a. Tall fescue suitability map for the conterminous US based only on soil drainage tolerance values where very poorly drained (VPD) is considered unsuited (with values of relative growth <25%), poorly drained (PD) and excessively drained (ED) are marginally suited (with values of relative growth 50-75%), and somewhat poorly drained (SPD) to well drained (WD) are categorized as well-suited (with values of relative growth >75%)

<--Soil Drainage Tolerance

 

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Tall Fescue Monograph