what not to grow in your opinion

Kohl Rabbi,

Lovely looking plant, but never really found a culinary use for it that couldn't be done better with a different vegetable. Still got a row full so I'm wondering if my friends rabbits will like it.

I too wouldn't bother with asparagus pea again - very pretty flowers but so little to actually eat it's hard to say whether the flavour is good, bad or indifferent!

A lot of other crops I don't grow either because I have neither the space nor suitable soil (all brassicas except radish) or because for me they didn't grow very well and I didn't particularly like them anyway (salsify springs to mind.)

Some things I'm desperate to grow successfully but should probably give up on - Florence Fennel tops that list! 

Sweet mini peppers 'snackbite'- got some this year as meant to be great grown on the patio etc
Just got the first one ripe today
described as heavy cropping with 25-30 fruits per plant
more like 4-9 and only 1 per plant ripe so far.......

shame- they are something I love from the supermarket!

Peas - apart from one row to eat while standing on the plot which is just wonderful.  Otherwise, too much podding - they won't wait for you - you have to pick them when perfect and they take ages to pod to freeze.

Runners - think I prefer the taste of french beans...

celeriac - love the stuff but can't get it to grow.

Asparagus Pea - had to pick so small as to be tedious, and so dwarf that it gave me backache
Salisfy - grow parsnips, far better yield-per-area
Sconzonera
Mini Corn - nightmare to pick at the right time (cobs obscured and impossible to guess their size). Supermarket had better taste 
Celery - never managed to get a proper crop of self-blanching. Also doesn't fit my "Grow what you like to eat" mantra!

Dwarf anything - backache stooping to pick them - e.g. French Beans (I grow climbing French instead although I still grow a few Dwarf for earliest season picking), The Sutton (Broadbean)

Sweet Peppers & Aubergines - I grow them, but the yield is dreadful

Runners - think I prefer the taste of french beans...

I'm with you ptarmigan as far as runners are concerned. I don't like them at all and Plotfather agrees that French beans are much tastier

We prefer French too, we grow both the tubular Haricot type, but we also like "flat beans" which are shaped like Runners and taste / texture like French.  e.g. the variety Limka (climbing) or Masterpiece (Dwarf).  Borlotti beans (picked before the beans fatten) taste much the same.

Kohl Rabbi

On its own I agree, but we like it raw mixed with (cooked, and cooled) Beetroot, all diced together with Greek yogurt as a cold salad

So far, tomatillos and cape gooseberries - I have both outside and while they are huge plants, dripping with fruits, neither are showing any signs of getting ripe. They have been growing since Feb/Mar so that's a hell of a long wait.

I am not entirely sure whether this is down to me or the plant. Probably the former.

Definitely with you on the asparagus pea. Also really, really dislike chard.

I think aubs are worth growing, even if the yield is poor, they are beautiful plants.

Tomatoes - far too much effort for the results. I've a large plot and enough work to do without slaving over one crop in particular.