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Tetrastar Tetraploid Annual Ryegrass

Ideally suited for managed grazing operations due to strong seedling vigor, productivity, and regrowth.


Tetrastar Annual Ryegrass (Lolium perenne) produces high quality temporary pasture. Its strong seedling vigor, high yield, and high quality makes it desirable when mixed with clover.

The high production capacity of this annual ryegrass also makes it popular for additional feed when short hay supplies are expected.

As a cover crop, the extensive root system of Tetrastar makes it an effective catch crop for nitrogen and can help break up compacted soils. It offers many benefits including erosion control, improvement of aggregate stability, and increased organic matter to the soil profile. It can be used as a nurse crop with fall-planted legumes such as clover or peas.

Nitrogen Icon

Nitrogen Fixation

icon erosion

Erosion Control

icon weed

Weed Control

icon compaction

Compacted Soils

icon recycling

Nutrient Recycling

Water Management Icon

Water Infiltration

icon quick growth

Quick Growth

icon forage

Quality Forage

icon nematode

Nematode Control

icon insect

Beneficial Insectary

key benefit

Image Gallery:

Root Structure
Carbon Ratio
Seeds Per Pound
5.0 – 8.0

Planting Instructions:

Seeding Rate:
15-20 lbs./acre (monoculture)
25-30 lbs./acre (monoculture)
Planting Depth:
1/4 – 1/2 inch
Ideal Soil:
Loam to heavy clay soils
Ideal Planting Season:
Fall, Spring if necessary
Forage Quality Ability to improve forage quality by suppressing weeds and providing highly nutritious forage  
Nutrient Recycling Ability to store excess nutrients for use in subsequent cash crops  
Quick Growth Ability to increase soil organic matter by accumulating biomass in a short period of time  
Weed Suppression Ability to suppress weeds by shading soil and releasing allelopathic chemicals  
Nitrogen Fixation Ability to fix nitrogen into your soil for your subsequent cash crops to utilize as fertilizer for growth and energy  
Beneficial Insectary Ability to attract beneficial insects and reduce your reliance on costly insecticides  
Soil Compaction Ability to increase nutrient uptake and root development by breaking up dense and compacted soil  
Erosion Control Ability to hold soil in place to capture and retain moisture from rainfall and prevent topsoil erosion  
Water Management Ability to increase field productivity by improving the drainage of wet soils  
Heat Ability to tolerate heat stress caused by warm temperatures and/or limited water availability  
Drought Ability to tolerate periods of limited water availability  
Sub-Freezing Ability to tolerate freezing temperatures for an extended period of time  
Shade Ability to tolerate low light conditions caused by plant competition  
Flood Ability to tolerate standing water or flooded areas for a limited period of time  
Low Fertility Ability to tolerate soils with limited nitrogen, and other mineral resources necessary for growth  
Protein 16.30% 
Relative Forage Value 136 
Water Soluble Carbohydrates 17% 
Total Digestible Nutrients 66%
Red=Host, Green=Non-host, Yellow=Insufficient Data
Columbia Root Knot  
Northern Root Knot  
Southern Root Knot  
Soybean Cyst  
Sugarbeet Cyst