What a great photo! Ours have grown out, rather than up! I put a little more tought into the second sowing and have put canes and netting up for them - we don't have room for peas to take over like that!
Ooo, I've just noticed that you have reached your Just Giving target - well done!
Love it. I am sure mine would be taller than me too, but most of them are growing outwards.