Hi, GrendelsMum & Doozle,
Leeks-wise, as Doozle says, no worries. Soil falling into holes is pretty much inevitable, even on heavy clay soil like mine - doesn't seem to make much of a diff; I'm guessing the crumbled soil isn't so compacted as to reduce the increase in girth. Key really is to keep up consistent watering - use a rose on a can or lightish spray on hosehead, if you want to reduce crumbling to min.
Doozle - some thoughts on veg that might be of interest:
-Pots: if you like Earlies (great, as avoids issues with blight) but would like to try something that isn't a waxy / salad type, try Sharpes Express. Really tasty & more versatile.
- Beetroot - I love it but the colour / stainin issue irks!! Some great golden varieties, which have a slightly milder, sweeter taste but don't write off your clothes, if spilt!
- French Beans - I like a very thin 'filet' type & my fav was Capitole. Seems you can't get that any more, so am trying Green Arrow this year & it's looking pretty good, so far.
- Celeriac - one I haven't tried, yet & I do so love Celeria remoulade. But, if you like that 'celery-ish but a bit diff' flavour, consider having a bash at Bulb Fennel - incredibly easy from seed, has a lovely crisp texture similar to the best celery, fresh tangy aniseed flavour raw (great in salads) but cooks to taste much like celery. I've done a variety called Finale & it's super.
-Oregon Sugar Pod - what a good idea to do sugar snaps or mangetout (think Oregon is mangetout & I'm doing this year, too)- they are relatively expensive to buy, often come from Kenya & the like & yet are dead easy to grow.....And the mega bonus - don't get Pea Moth!! I'm doing Zuccola Sugar Snap this year & it's pretty good. If you want an eccentric Mangetout that you will NEVER find in shops, try heritage variety Carouby de Maussane. It's big (both plant & fruits), bold, ugly enough for supermarkets to reject (!), but crops over a long season & tastes great, even when pods are overgrown.
Empathise with your scab issue. My bane has been blight for last few years. Wiped out a whole crop of maincrop pots, in 2008. But a bit of advice from bitter experience (literally bitter) - treat the specifically disease resitant varieties with caution, as most have a pretty poor flavour. If you want to take a few risks, I'd recommend Ratte, which is Maincrop but have a wonderful taste of chestnuts. And phureja varieties like Mayan Gold are worth a try - markedly different taste, very buttery & a touch more resistance to blight.
Hope waffle above is of interest. Will have a hack through database later & pick out my top 10 veggies!!