Hi,

Alfalfa: Deep rooted it makes an excellent companion to shallow rooted plants due to less competition for soil space. Alfalfa also hinders evaporation, which can help other plants during dry spells. Alfalfa and the onion family don’t mix. Another thing to be aware of is Alfalfa encourages Dandelions, which also have deep roots they can move in after the alfalfa dies down. Alfalfa also fixates Nitrogen and accumulates iron, magnesium, phosphorous and potassium.

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