This afternoon I got some Lupin seeds. The soil in our backyard has no nitrogen, so I though since Lupins were legumes I could use them to add the nitrogen back into the soil. Now, in another thread someone mentioned that the nitrogen might only go into the soil when the plants die............so I'm wodering will that happen when the Lupins die back in the fall(from the rotting foliage) or when the plants die permenantly(when the roots rot)?
Any thoughts?
Steven
