Medicago truncatula
Medicago truncatula · Fabaceae
The gardener's calendar
Ideal time to plant medicago truncatula: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Fabaceae
- Type
- Annual or biennial herbaceous plant
- Adult height
- 20 to 40 cm tall
- Flowering
- Spring to summer (April to July)
- Foliage
- Deciduous, trifoliate
- Hardiness
- Very hardy, tolerates dry zones
- Origin
- Mediterranean Basin
Care
Exposure
Install truncated alfalfa in full sun for optimal growth. It tolerates bright, well-ventilated situations, which are essential to limit fungal diseases. A south or west-facing exposure is ideal.
Soil
This plant adapts to many soil types, even chalky or infertile ones. It prefers well-drained soil that's slightly dry once established. Avoid prolonged waterlogging.
Watering
Water regularly after planting to encourage root establishment. Once established, truncated alfalfa is very tolerant of drought thanks to its deep roots. Limit watering during humid periods.
Fertilizer
As a legume, this plant fixes atmospheric nitrogen and doesn't need nitrogen input. Moderate applications of phosphorus and potassium in spring can stimulate growth, without excess.
Pruning and maintenance
No pruning is necessary. If you cultivate alfalfa for agricultural or forage purposes, you can perform regular harvests at the optimal stage. Remove diseased or overly invasive plants.
Diseases and pests
Truncated alfalfa is generally robust. In humid conditions, watch for root rot and powdery mildew. Aphids can colonize it in spring. Prioritize good aeration and correct drainage to prevent problems.
Did you know?
Medicago truncatula is far more than a simple forage crop: it's the major model plant in legume genetics and root symbiosis research. Its small seeds and compact genome make it a living laboratory for researchers studying nitrogen fixation, hence its strategic importance in sustainable agriculture and symbiosis biology.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.