Mandan Wildrye Grass, Grains

Mandan Wildrye Grass Annual Ryegrass Seed

Fast-growing Mandan Wildrye protects soil with hardy perennial roots
Cool-season bunchgrass adapts to a broad range of soils
Spring sowing generally provides the strongest establishment
Use for erosion control and resilient grass plantings

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Key Attributes

Botanical Name

Elymus canadensis

Days to maturity

110 Days

Sun

Full Sun

About Mandan Wildrye Grass, Annual Ryegrass Seed, Annual Ryegrass Seed

The Mandan Wildrye Grass is a fast growing, cool-season, perennial bunch-grass that is a great choice for erosion control. It can be planted early or late fall, but for best results, Mandan Wildrye should be planted in the spring. This hardy grass performs well on most soil types.

Growing details

Planting

Sow Depth

Days to Germination

7–21 days

Row Spacing

Broadcast or Drill

Plant profile

Life Cycle

Perennial

Hardiness Zone

Zones 3-8

Plant Height

60 inches

Growth Habits

Clumping, Upright

Seed & variety

Seeds Per Ounce

7,188

Seed Type

Open Pollinated

Before Planting

Correct drainage, pH, and phosphorus or potassium deficiencies before seeding annual ryegrass. Remove perennial weeds, smooth the area, and firm loose soil so seed remains shallow and has reliable soil contact.

Planting

Broadcast or drill annual ryegrass in late summer to early fall, allowing at least 4–6 weeks before a hard freeze. Place seed about 1/4–1/2 inch deep and firm the soil for good contact. Use the seeding rate supplied for lawns, forage, or cover cropping; stands are not thinned after emergence.

Watering

Maintain surface moisture during germination, then irrigate less often and more deeply. Established turf or forage needs water during extended drought, but saturated soils limit roots and increase crown disease.

Fertilizer

Use a soil test and the stand’s purpose to set fertility. Nitrogen promotes growth but should be split across active periods; avoid heavy applications before drought, dormancy, or freezing weather.

Harvesting

For forage, graze or mow annual ryegrass during vegetative growth through early heading, before stems become coarse. As a cover crop, terminate at boot to early-heading stage before viable seed develops. Harvest seed only after heads turn tan and dry, then dry further before storage.

Tips

Mow before seed heads emerge if annual ryegrass is a cover crop or temporary lawn. Terminate it promptly before seed set where volunteers are unwanted, and account for its residue before planting the next crop.

AVG. Seeding Rate

½–1 lb./1,000 sq.ft.; 15–30 lb./acre.

Pests & Diseases

Crown rust, gray leaf spot, and leaf spot or melting-out diseases can weaken annual ryegrass. Yellow flecks, orange pustules, gray-centered lesions, or thinning crowns are warning signs. Use resistant varieties when available, maintain balanced fertility, avoid excessive nitrogen and prolonged leaf wetness, mow appropriately, and remove or terminate severely diseased residue.

Armyworms clip ryegrass seedlings and leaves, cereal aphids gather within the canopy, and billbugs or cutworms may thin new stands. Inspect field edges and sheltered areas first. Maintain balanced fertility, avoid unnecessary insecticides that remove aphid predators, and mow before armyworms disperse into neighboring crops.