DOT Seed Mixes
Conserv FS carries a full line of seed mixes approved by the Illinois Department of Transportation (IDOT). These blends are used for things like roadside stabilization and erosion control, as well as for low-maintenance grass along highways.
Click on each mix below to see the exact components and seeding rates, so you know exactly what to apply for the conditions you’re working with.
Illinois DOT Mixes
IDOT Class 1 Lawn Mixture
- Kentucky Bluegrass: 100 lbs. / acre
- Perennial Ryegrass: 60 lbs. / acre
- Creeping Red Fescue: 40 lbs. / acre
Total: 200 lbs. / acre
IDOT Class 1A Salt Tolerant Lawn Mixture
- Kentucky Bluegrass: 60 lbs. / acre
- Perennial Ryegrass: 20 lbs. / acre
- Audubon Red Fescue: 20 lbs. / acre
- Rescue 911 Hard Fescue: 20 lbs. / acre
- Fults Salt Grass: 60 lbs. / acre
Total: 180 lbs. / acre
IDOT Class 1B Low Maintenance Lawn Mixture
- Fine Leaf Turf-Type Fescue: 150 lbs. / acre
- Perennial Ryegrass: 20 lbs. / acre
- Red Top: 10 lbs. / acre
- Creeping Red Fescue: 20 lbs. / acre
Total: 200 lbs. / acre
IDOT Class 2 Roadside Mixture
- Inferno Tall Fescue or Tarheel II Tall Fescue: 100 lbs. / acre
- Perennial Ryegrass: 50 lbs. / acre
- Creeping Red Fescue: 40 lbs. / acre
- Red Top: 10 lbs. / acre
Total: 200 lbs. / acre
IDOT Class 2A Salt Tolerant Roadside Mixture
- Inferno Tall Fescue or Tarheel II Tall Fescue: 60 lbs. / acre
- Perennial Ryegrass: 20 lbs. / acre
- Audubon Red Fescue: 30 lbs. / acre
- Rescue 911 Hard Fescue: 30 lbs. / acre
- Fults Distans Alkaligrass: 60 lbs. / acre
Total: 200 lbs. / acre
IDOT Class 2E Salt Tolerant Roadside Mixture
- K-31 or Alta Tall Fescue: 50 lbs. / acre
- Kentucky Bluegrass: 40 lbs. / acre
- Fults Distans Alkaligrass: 40 lbs. / acre
- Dawson Creeping Red Fescue: 40 lbs. / acre
- Perennial Ryegrass: 40 lbs. / acre
- Rescue 911 Hard Fescue: 15 lbs. / acre
- Buffalo Grass: 10 lbs. / acre
Total: 235 lbs. / acre
- Tall Fescue (Inferno, Tarheel II, Quest, Blade Runner or Falcon IV): 80 lbs. / acre
- Kentucky Bluegrass: 20 lbs. / acre
- Perennial Ryegrass: 50 lbs. / acre
- Creeping Red Fescue (Audubon, Sea Link, or Epic): 30 lbs. / acre
- Hard Fescue (Rescue 911, Spartan II, or Reliant IV): 40 lbs. / acre
- Fults Distans Alkaligrass: 60 lbs. / acre
- Dawson Creeping Red Fescue: 20 lbs. / acre
Total: 300 lbs. / acre
IDOT Class 2F Roadside Mixture
- Tall Fescue (Inferno, Tarheel II, Quest, Blade Runner or Falcon IV): 110 lbs. / acre
- Kentucky Bluegrass: 50 lbs. / acre
- Perennial Ryegrass: 50 lbs. / acre
- Creeping Red Fescue: 50 lbs. / acre
- Red Top: 10 lbs. / acre
- Dawson Creeping Red Fescue: 20 lbs. / acre
Total: 290 lbs. / acre
IDOT Class 3 Northern Illinois Slope Mixture
- Canada Wild Rye: 5 lbs. / acre
- Perennial Ryegrass: 20 lbs. / acre
- Alsike Clover: 5 lbs. / acre
- Illinois Bundleflower: 2 lbs. / acre
- Little Bluestem: 12 lbs. / acre
- Side-Oats Grama: 10 lbs. / acre
- Fults Salt Grass: 30 lbs. / acre
- Oats, Spring: 50 lbs. / acre
- Slender Wheat Grass: 15 lbs. / acre
- Buffalo Grass: 5 lbs. / acre
Total: 154 lbs. / acre
IDOT Class 3E Slope Mixture
- Canada Wild Rye (Elymus Canadensis): 10 lbs. / acre
- Perennial Ryegrass: 40 lbs. / acre
- Alsike Clover: 10 lbs. / acre
- Illinois Bundleflower (Desmanthus Illinoensis): 2 lbs. / acre
- Little Bluestem (Andropogon Scoparius): 25 lbs. / acre
- Side-Oats Grama (Bouteloua Curtipendula): 20 lbs. / acre
- Fults Salt Grass: 30 lbs. / acre
- Oats, Spring: 50 lbs. / acre
- Slender Wheat Grass: 15 lbs. / acre
- Buffalo Grass (Cody or Bowie): 5 lbs. / acre
- Alta Tall Fescue or K-31: 50 lbs. / acre
- Kentucky Bluegrass: 20 lbs. / acre
- Annual Ryegrass: 30 lbs. / acre
- Creeping Red Fescue: 15 lbs. / acre
Total: 322 lbs. / acre
IDOT Class 4 Native Grass Mixture
- Big Blue Stem: 4 lbs. / acre
- Little Bluestem: 5 lbs. / acre
- Side-Oats Grama: 5 lbs. / acre
- Canada Wild Rye: 1 lb. / acre
- Switchgrass: 1 lb. / acre
- Indian Grass: 2 lbs. / acre
- Annual Ryegrass: 25 lbs. / acre
- Oats, Spring: 25 lbs. / acre
- Perennial Ryegrass: 15 lbs. / acre
Total: 83 lbs. / acre
IDOT Class 4A Low Profile Native Mixture
- Little Bluestem: 5 lbs. / acre
- Side-Oats Grama: 5 lbs. / acre
- Canada Wild Rye: 1 lb. / acre
- Prairie Dropseed: 0.5 lbs. / acre
- Annual Ryegrass: 25 lbs. / acre
- Oats, Spring: 25 lbs. / acre
- Perennial Ryegrass: 15 lbs. / acre
Total: 76.5 lbs. / acre
IDOT Class 4B Wetland Grass & Sedge Mixture
- Annual Ryegrass: 25 lbs. / acre
- Spring Oats: 25 lbs. / acre
- Wetland Grasses (species listed below): 6 lbs. / acre
Wetland Grasses:
- Blue Joint Grass: 12%
- Lake-Bank Sedge: 6%
- Awl-Fruited Sedge: 6%
- Tussock Sedge: 6%
- Fox Sedge: 6%
- Needle Spike Rush: 3%
- Blunt Spike Rush: 3%
- Fowl Manna Grass: 14%
- Common Rush: 6%
- Slender Rush: 6%
- Torrey’s Rush: 6%
- Rice Cut Grass: 10%
- Hard-Stemmed Bulrush: 3%
- Dark Green Rush: 3%
- River Bulrush: 3%
- Cord Grass: 4%
IDOT Class 4E Native Grass Mixture
- Little Bluestem (Andropogon Scoparius): 15 lbs. / acre
- Side-Oats Grama (Bouteloua Curtipendula): 10 lbs. / acre
- Canada Wild Rye (Elymus Canadensis): 2 lbs. / acre
- Switchgrass (Panicum Virgatum): 2 lbs. / acre
- Indiangrass (Sorghastrum Nutans): 2 lbs. / acre
- Annual Ryegrass: 30 lbs. / acre
- Oats, Spring: 40 lbs. / acre
- Perennial Ryegrass: 25 lbs. / acre
- Alta Tall Fescue: 20 lbs. / acre
Total: 146 lbs. / acre
IDOT Class 5 Forbs with Annual Mixture
- Forbs Mixture: 10 lbs. / acre
- Annuals Mixture: 1 lb. / acre
Forbs Mixture:
Lead Plant, Smooth Aster, Prairie Coreopsis, Ox-Eye, Prairie Bergamont, Purple Prairie Clover, Fragrant Coneflower, Spiderwort, Sky Blue Aster, New Jersey Tea, Downy Sunflower, Prairie Blazing Star, White Prairie Clover, Yellow Coneflower, Rigid Goldenrod, Butterfly Weed, White Wild Indigo, Rattlesnake Master, Rough Blazing Star, Louse Wart, Prairie Cinquefoil, Prairie Dock, Thimble Weed, New England Aster, Pale Purple Coneflower, Alum Root, Wild Quinine, False Dragonhead, Compass Plant, Culver’s Root Annuals Mixture (not exceeding 25% by weight):
Sand Coreopsis, Shasta Daisy, Black-Eyed Susan, Blanket Flower, Long-Headed Coneflower
IDOT Class 5A Large Flower Native Forb Mixture
- Forbs Mixture: 5 lbs. / acre
Forbs Mixture:
- New England Aster: 5%
- Pale Purple Coneflower: 10%
- Downy Sunflower: 10%
- Ox-eye: 10%
- Prairie Blazing Star: 10%
- Yellow Coneflower: 5%
- Black-Eyed Susan: 10%
- Compass Plant: 10%
- Prairie Dock: 20%
- Rigid Goldenrod: 10%
IDOT Class 5B Wetland Forb Mixture
- Forbs Mixture: 2 lbs. / acre
Forbs Mixture:
- Sweet Flag: 3%
- Angelica: 6%
- Swamp Milkweed: 2%
- Stemmed Aster: 10%
- Beggarticks: 7%
- Spotted Joe-Pye Weed: 7%
- Boneset: 7%
- Autumn Sneeze Weed: 2%
- Blue Flag Iris: 2%
- Cardinal Flower: 5%
- Great Blue Lobelia: 5%
- Winged Loosestrife: 2%
- False Dragonhead: 5%
- Smartweed: 10%
- Water Smartweed: 10%
- Mountain Mint: 5%
- Cut Leaf Coneflower: 5%
- Riddel Goldenrod: 2%
- Giant Burweed: 5%
Annuals Mixture (not exceeding 25% by weight)
- Sand Coreopsis
- Shasta Daisy
- Black-Eyed Susan
- Blanket Flower
- Long-Headed Coneflower
IDOT Class 5A Large Flower Native Forb Mixture
- Forbs Mixture: 5 lbs. / acre
Total: 5 lbs. / acre
Forbs Mixture
- New England Aster: 5%
- Pale Purple Coneflower: 10%
- Downy Sunflower: 10%
- Ox-eye: 10%
- Prairie Blazing Star: 10%
- Yellow Coneflower: 5%
- Black-Eyed Susan: 10%
- Compass Plant: 10%
- Prairie Dock: 20%
- Rigid Goldenrod: 10%
IDOT Class 5B Wetland Forb Mixture
- Forbs Mixture: 2 lbs. / acre
Total: 2 lbs. / acre
IDOT Class 6 Conversion Mixture
- Little Bluestem: 5 lbs. / acre
- Canada Wild Rye: 2 lbs. / acre
- Buffalo Grass: 5 lbs. / acre
- Vernal Alfalfa: 15 lbs. / acre
- Oats, Spring: 48 lbs. / acre
Total: 75 lbs. / acre
IDOT Class 6A Salt Tolerant Conservation Mixture
- Little Bluestem: 5 lbs. / acre
- Canada Wild Rye: 2 lbs. / acre
- Buffalo Grass: 5 lbs. / acre
- Vernal Alfalfa: 15 lbs. / acre
- Oats, Spring: 48 lbs. / acre
- Fults Salt Grass: 20 lbs. / acre
Total: 95 lbs. / acre
IDOT Class 7 Temporary Erosion Control Mixture
- Perennial Ryegrass: 50 lbs. / acre
- Oats, Spring: 64 lbs. / acre
Total: 114 lbs. / acre
Tollway Mixes
Illinois Tollway Class A3 Native Slope Mixture
- K-31 or Alta Tall Fescue: 60 lbs. / acre
- Spring Oats: 50 lbs. / acre
- Perennial Ryegrass: 40 lbs. / acre
- Kentucky Bluegrass: 40 lbs. / acre
- Fults Distans Alkaligrass: 30 lbs. / acre
- Dawson Creeping Red Fescue: 25 lbs. / acre
- Side-Oats Grama (Bouteloua Curtipendula): 15 lbs. / acre
- Little Bluestem (Andropogon Scoparius): 10 lbs. / acre
- Birdsfoot Trefoil: 5 lbs. / acre
- Alsike Clover: 5 lbs. / acre
- Indiangrass (Sorghastrum Nutans): 3 lbs. / acre
Total: 283 lbs. / acre
Illinois Tollway Class A4 Native Grass Mixture
- K-31 or Alta Tall Fescue: 60 lbs. / acre
- Spring Oats: 50 lbs. / acre
- Annual Ryegrass: 35 lbs. / acre
- Kentucky Bluegrass: 35 lbs. / acre
- Perennial Ryegrass: 30 lbs. / acre
- Dawson Creeping Red Fescue: 20 lbs. / acre
- Little Bluestem (Andropogon Scoparius): 10 lbs. / acre
- Side-Oats Grama (Bouteloua Curtipendula): 5 lbs. / acre
- Indiangrass (Sorghastrum Nutans): 3 lbs. / acre
- Switchgrass (Panicum Virgatum): 1 lb. / acre
Total: 249 lbs. / acre
Illinois Tollway Class A5 Forb/Annual Mixture
- Forbs Mixture (see list below): 14 lbs. / acre
- Annual Mixture (see list below): 2 lbs. / acre
Forbs Mixture (not exceeding 5% by PLS weight of any one species): Lead Plant, Smooth Aster, Prairie Coreopsis, Ox-Eye, Prairie Bergamont, Purple Prairie Clover, Fragrant Coneflower, Thimble Weed, Sky Blue Aster, New Jersey Tea, Downy Sunflower, Prairie Blazing Star, White Prairie Clover, Butterfly Weed, White Wild Indigo, Rattlesnake Master, Rough Blazing Star, Dame’s Rocket, Prairie Cinquefoil, Prairie Dock, Compass Plant, New England Aster, Pale Purple Coneflower, Yellow Coneflower, Stiff Goldenrod Annual Mixture (not exceeding 25% by weight of any one species): Sand Coreopsis, Blanket Flower, Shasta Daisy, Long-Headed Coneflower, Black-Eyed Susan
Illinois Tollway Class A6 Special Use Slope
- Perennial Ryegrass: 60 lbs. / acre
- Crown Vetch: 40 lbs. / acre
- Birdsfoot Trefoil: 30 lbs. / acre
Total: 130 lbs. / acre
Illinois Tollway Class B1 Native Overseeding
- Perennial Ryegrass: 25 lbs. / acre
- Spring Oats: 25 lbs. / acre
- Forbs Mixture (see list below): 10 lbs. / acre
- Little Bluestem: 5 lbs. / acre
- Side-Oats Grama: 2 lbs. / acre
- Indiangrass: 2 lbs. / acre
- Prairie Wild Rye: 2 lbs. / acre
- Switchgrass: 2 lbs. / acre
- Prairie Dropseed: 1 lb. / acre
Forbs Mixture (not exceeding 10% by PLS weight of any one species): Sky Blue Aster, Smooth Aster, New England Aster, Cream Baptisia, Dame’s Rocket, Lance-Leaved Coreopsis, Prairie Coreopsis, Shooting Stars, Pale Purple Coneflower, Rattlesnake Master, Prairie Betony, Prairie Quinine, Rough Blazing Star, Prairie Blazing Star, Lupine, Prairie Bergamont, Prairie Yellow Coneflower, Black-Eyed Susan, Purple Prairie Clover, White Prairie Clover, Compass Plant, Stiff Goldenrod
Illinois Tollway Class B2 Wildflower Overseeding
- Perennial Ryegrass: 20 lbs. / acre
- Buffalograss: 5 lbs. / acre
- Side-Oats Grama: 3 lbs. / acre
- Blue Grama: 1 lb. / acre
- Annual Mixture (see list below): 2 lbs. / acre
- Forbs Mixture (see list below): 14 lbs. / acre
Total: 45 lbs. / acre
Forbs Mixture (not exceeding 10% by PLS weight of any one species): (goes with Class B2 above)
Smooth Aster, Rattlesnake Master, Rough Blazing Star, Dame’s Rocket, Pale Purple Coneflower, Prairie Cinquefoil, Sky Blue Aster, Stiff Goldenrod, Prairie Yellow Coneflower, Black-Eyed Susan
Annual Mixture (not exceeding 25% by weight of any one species): (goes with Class B2 above)
Lance-Leaved Coreopsis, Indian Blanket, Corn Poppy, Upright Prairie Coneflower, Black-Eyed Susan, Catchfly
Illinois Tollway Class D1 Wetland Mixture
- Annual Ryegrass: 40 lbs. / acre
- Wetland Grasses (see list below): 6 lbs. / acre
Total: 46 lbs. / acre
Wetland Grasses:
- Blue Joint Grass: 12%
- Lake-Bank Sedge: 6%
- Awl-Fruited Sedge: 6%
- Tussock Sedge: 6%
- Fox Sedge: 6%
- Needle Spike Rush: 3%
- Blunt Spike Rush: 3%
- Fowl Manna Grass: 14%
- Common Rush: 6%
- Slender Rush: 6%
- Torrey’s Rush: 6%
- Rice Cut Grass: 10%
- Hard-Stemmed Bulrush: 3%
- Dark Green Rush: 3%
- River Bulrush: 3%
- Cord Grass: 4%
Wisconsin DOT Mixes
Wisconsin DOT Number 10 Mixture
- Kentucky Bluegrass: 40%
- Red Fescue: 25%
- Redtop: 5%
- Perennial Ryegrass: 20%
- White Clover: 10%
Wisconsin DOT Number 20 Mixture
- Kentucky Bluegrass: 6%
- Hard Fescue or Chewings Fescue: 24%
- Tall Fescue: 40%
- Perennial Ryegrass: 15%
- Red Fescue: 15%
Wisconsin DOT Number 30 Mixture
- Kentucky Bluegrass: 10%
- Red Fescue: 30%
- Hard Fescue or Chewings Fescue: 25%
- Salt Grass: 15%
- Improved Fine-Leafed Perennial Ryegrass: 20%
Wisconsin DOT Number 40 Mixture
- Kentucky Bluegrass: 35%
- Red Fescue: 30%
- Hard Fescue or Chewings Fescue: 20%
- Improved Fine-Leafed Perennial Ryegrass: 15%
Wisconsin DOT Number 60 Mixture
- Timothy: 12%
- Canada Wild Rye: 10%
- Annual Ryegrass: 30%
- Alsike Clover: 4%
- Red Clover: 4%
- Japanese Millet: 20%
- Annual Oats: 20%
Ohio DOT Mixes
Class 4B Low Growing Native Grass Mixture
Use for slopes flatter than 2:1 or for wildlife habitat mitigation where low-growing species are required.
- Little Bluestem (Schizachyrium scoparium): 0.88 lbs. / 1000 m²
- Sideoats Grama (Bouteloua curtipendula): 0.19 lbs. / 1000 m²
- Prairie Dropseed (Sporobolus heterolepis): 0.19 lbs. / 1000 m²
- Annual Ryegrass (Lolium multiflorum):
- Spring: 0.54 lbs. / 1000 m²
- Fall: 1.66 lbs. / 1000 m²
Class 5A Annual and Perennial Wildflower Mixture
Use for slopes flatter than 2:1 and wildlife habitat mitigation.
- Annual Mixture (0.34 lbs. / 1000 m²)
No more than 25% by weight of any single species - Corn Poppy (Papaver rhoeas)
- Cosmos (Cosmos bipinnatus)
- Yellow Cosmos (Cosmos sulphureus)
- Cornflower (Centaurea cyanus)
- Rocket Larkspur (Delphinium ajacis)
- Indian Blanket (Gaillardia pulchella)
- Perennial Wildflower Mixture (1.37 lbs. / 1000 m²)
No more than 50% PLS by weight of any single species - Black-eyed Susan (Rudbeckia hirta)
- Purple Coneflower (Echinacea purpurea)
- Lance-Leaved Coreopsis (Coreopsis lanceolata)
Class 5B Native Wildflower and Grass Mixture
Use for slopes flatter than 2:1 and seeding for wildlife habitat mitigation.
- Native Wildflower Mixture (1.66 lbs. / 1000 m²)
No more than 10% PLS by weight of any single species - Butterfly Weed (Asclepias tuberosa)
- New England Aster (Aster novae-angliae)
- Partridge Pea (Cassia fasciculata)
- Purple Coneflower (Echinacea purpurea)
- Rattlesnake Master (Eryngium yuccifolium)
- Ox-Eye Sunflower (Heliopsis helianthoides)
- Wild Bergamot (Monarda fistulosa)
- Greyhead Coneflower (Ratibida pinnata)
- Orange Coneflower (Rudbeckia fulgida)
- Prairie Dock (Silphium terebinthinaceum)
- Whorled Rosinweed (Silphium trifoliatum)
- Stiff Goldenrod (Solidago rigida)
Approved Seed Mixes for Every Project
From erosion control to roadside stabilization, Conserv FS offers DOT-approved seed blends designed to perform in tough conditions. With mixes approved in Illinois, Wisconsin, Ohio, and beyond, you can count on reliable results that meet state specifications while supporting lasting landscapes.