Region 1: West of the Cascades
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Erosion and Reclamation
Standard Erosion
- 40% Creeping Red Fescue
- 40% Perennial Ryegrass
- 10% White Clover
- 10% Highland Colonial Bentgrass
No-Clover Erosion Mix
- 45% Creeping Red Fescue
- 45% Perennial Ryegrass
- 10% Highland Colonial Bentgrass
All Clover Mix
- 50% White Clover
- 50% Crimson Clover
Economy Erosion Control
- 60% Annual Ryegrass
- 20% Perennial Ryegrass
- 20% Creeping Red Fescue
Wetland Seed Mix 1
- 80% Tall Fescue
- 10% Seaside Bentgrass
- 10% Redtop
Wetland Seed Mix 2
- 68% Tall Fescue
- 10% Seaside Bentgrass
- 10% Meadow Foxtail
- 6% Alsike Clover
- 6% Redtop
Bioswale
- 40% Turf-type Tall Fescue
- 30% Dwarf Perennial Ryegrass
- 25% Creeping Red Fescue
- 5% Highland Colonial Bentgrass
WSDOT PLS Erosion Control Seed Mixes for Western Washington
PLS pounds/acre
- 60.00 Perennial Ryegrass
- 17.00 Creeping Red Fescue
- 3.00 White Dutch Clover (inoculated)
PLS pounds/acre
- 53.00 Perennial Ryegrass
- 16.00 Hard Fescue or Sheep Fescue
- 11.00 Sherman Big Bluegrass
PLS pounds/acre
- 20.00 Creeping Red Fescue
- 12.00 Meadow Foxtail
- 8.00 White Dutch Clover (inoculated)