[slurp]

What could i sow as a green manure?

[Aidy]

All depends on what your going to put in your bed next?

[noshed]

Field beans will be OK anywhere - although I was thinking of just using autumn sown broad beans so you get a crop as well. Then just dig the stumps in.
I tried Hungarian Grazing Rye last year and it was a bit of a struggle to dig in.