Onobrychis viciifolia
Sainfoin
Common names: Sainfoin (Onobrychis viciifolia), Sainfoin (German: Esparsette)
Photo: javier martin · Public Domain · Source
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Description
Sainfoin is a perennial, deep‑rooted legume that thrives on calcareous, dry soils and can also colonise lean sites. It fixes atmospheric nitrogen through its root nodules and breaks up compacted layers with a robust taproot. Its pinkish‑red flower spikes are among the best for bees and bumblebees.
Care instructions
Sow in spring (April/May, weeks 14‑22) or late summer (August, week 32) on lime‑rich, well‑drained soil—avoid waterlogging. As a perennial, it can be left in the field for two to three years. Mow at full bloom for optimal pollinator support and incorporate the remaining growth into the following crop.
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