betula, had the same problem with my arron pilots, bought from the 99p shop and not earther up so figured it was my fault,
have very few carrots, no parsnips, cabbage been eaten by the sodding pidgeons, dodgy looking rhubarb, non starting spring onions (probably pidgeons) onions not looking great either, not swelling but have green tops, but i didnt feed them? leeks look fab so far (phew!) sweetcorn ok courgettes slow but growing, bens sort of getting there, toms plenty of green and a few flowers... hmm.... lettuce starting to bolt but otherwise ok, strawberrys still not swelling despite sitting in a tray of water (potted) so its not lack of water...have been fed too, suspect aged plants, but um yeah lots of failiours i guess, oh pea plants eaten by... soddin pidgeons! wish i could afford lots of netting....