Just an update having been to check the lottie after all this rain. My little infiltrator looks like a bush tomato so even lazier growing on my part. It is now covered with blossom and I have some little fruits forming so fingers crossed I will have a totally free feast! Will let you know about the flavour soon - pests etc allowing!
Also thanks to all the advice I am getting a heavy (?) crop of courgettes (13 tonight off 9 plants) and my cucumbers are now about 5 feet up their supports with about 4 fruits forming each and the side shoots all pinched out.
So thanks to everyone for your advice. It has made this first season so far, a lot less painless than it could have been.
Iain :D