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Frosty Berseem Clover

Extend your grazing season with Alfalfa's best friend, a cold-tolerant, high-yielding forage and cover crop.


Frosty Berseem Clover (Trifolium alexandrinum) is an annual legume, native to the eastern Mediterranean region, and resembles alfalfa. This cool season annual legume is not known to cause bloat in ruminant livestock, unlike other annual clovers. In pasture applications, Frosty will improve the quality of quantity of forages while fixing nitrogen, providing long term soil health benefits. Berseem clover has shown to have a synergistic relationship with alfalfa, improving overall yields to new and existing stands.

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Nitrogen Icon

Nitrogen Fixation

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
Tap Root
5.2 – 7.8

Planting Instructions:

Seeding Rate:
15-20 lbs./acre (monoculture)
5-7 lbs./acre (in mixes)
20-25 lbs./acre (monoculture)
12-16 lbs./acre (in mixes)
Planting Depth:
1/4 – 1/2 inch
Ideal Soil:
Prefers slightly alkaline loam and silty soils
Ideal Planting Season:
Spring & Fall, Summer if necessary
Frosty is an ideal nitrogen fixing cover crop because of its growth habit and timing. It produces early season biomass that makes it highly attractive as a cover crop in rotation with corn, cotton, and more.
Nitrogen Fixation Ability to fix nitrogen into your soil for your subsequent cash crops to utilize as fertilizer for growth and energy  
Weed Suppression Ability to suppress weeds by shading soil and releasing allelopathic chemicals  
Beneficial Insectary Ability to attract beneficial insects and reduce your reliance on costly insecticides  
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  
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  
Nematode Resistance Ability to suppress the growth of nematodes by interrupting their reproductive cycles  
Frosty isn’t just cold tolerant, with good management, berseem clover is moderately tolerant to salt and saturated soils low in pH.

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  
All species of livestock and poultry will take readily to berseem forage. Research has shown that by adding Frosty to your initial sowing of alfalfa (10-20% of the mix) that the synergy between the two results in greater forage yields and improved forage quality.
Protein 22.10%
Relative Forage Value 179 
Water Soluble Carbohydrates 10.50% 
Total Digestible Nutrients 68% 
Red=Host, Green=Non-host, Yellow=Insufficient Data
Columbia Root Knot  
Northern Root Knot  
Southern Root Knot  
Soybean Cyst  
Sugarbeet Cyst