Growing protein

The quinoa may need staking soon. The peas are hurst greenshaft. supposed to grow 30" but the spot they are in they grep to 5', it is exceedingly fertile. Not sure how long it will last. It was the entrance to a field where over the years a variety of animals have been fed, cattle, sheep and horses (your old hen run could compete may be if you ut down the oak?). It was growing a crop of nettles and docks till about 4 years ago when I thought I would try and reclaim it. There must have been a building there in the past as I dug up lots of bricks and sandstone. It is very stony so root crops are out. 2 years ago, I grew a good crop of potatoes there and last year, from 300 sets, I got 70kg of onions and this year it will be peas and beans, as long as they can be harvested before any frosts. The peas and dwarf beans will be OK.