plant

Alfalfa

Medicago sativa

Updated 4 Aug 2026 · AI-parsed entry

Alfalfa (Medicago sativa) — a plant, for Full sun, Medium water. Companions: Wheat.

What it needs & gives back

↓ Needs

Lightfull sun to partial shade
Watermoderate

↑ Gives back

Mulch_biomasshigh

Companions

Through the year

Through the year

JFMAMJJASOND
emergenceEmergence typically occurs after the last spring frost when soil temperatures consistently reach 5°C.
floweringFlowering begins approximately 60 days after emergence and can continue for up to 90 days, depending on conditions and cutting.
harvestHarvest can occur at the early flowering stage, with multiple cuts possible throughout the growing season.
senescenceSenescence is triggered by the first autumn frost and shortening day lengths, leading to dormancy.
dormancyAlfalfa enters dormancy with the onset of cold temperatures and frost, persisting through winter.

Soil interactions

Drainagewell-drained
Nitrogen fixingYes
MycorrhizalYes
Accumulatescalcium, magnesium, sulfur, boron, iron, nitrogen, phosphorus, potassium
Soil textureloam, sandy_loam, clay_loam
Organic matterHigh
Compaction toleranceMedium

Propagation

Methodsseed
Difficulty1 / 5
Establishes in~1 yr
Stratificationnone
Self-seedingModerate

Wildlife & pests

Attractsbees, beneficial insects
Can host pestsalfalfa weevil, aphids, leafhoppers
Can host diseasesbacterial wilt, downy mildew, rust