I always go for climbing French beans (Cobra), as I think they're much nicer than runner beans, and easy to grow as long as you don't try to start them off too soon. I also grow mange-tout (similar to sugar peas), which are as easy as peas and there's less waste as you eat the whole pod. As you say, they're never cheap to buy, and it's lovely to have them really fresh. Norli are a good variety.
Personally I think onions are a bit of a waste of space as they're generally cheap to buy and the ones you grow taste much the same as the ones you buy. Have you thought of shallots? They're also dead easy, and you end up with something that is not cheap in the shops. You just buy a bag of seed shallots, stick them in the ground, and each one turns into a little bunch of shallots.
Make sure you protect your veg as slugs like to eat it away before you get it I find using plasic large water bottles with the bottom cut off that helps keep slugs away from the small plants - keeping the lid on, the plants can then grow on a bit when they are still young, pop up netting is good from http://www.pippagreenwood.com/products/protect-your-crops
Well, almost right, the courgettes are the fruits that follow the flowers but yes, once the plants get going, if they get the right weather just stand back and you can watch them grow
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Peas and beans are the seed pods and seeds so they need to be pollenated by insects; the same with courgettes, marrows, squashes. Because you want them to flower then produce seeds if you need to use fertilser you should use one which encourages flowering, eg one with potash in it. That was what I meant when I said that growing veg isn't that different from growing other plants, just work out whether you're growing flowers or foliage.
Cabbages, sprouts, lettuces, leeks, broccoli, onions, etc you eat the leaves - you don't want them to flower at all - you want to encourage plenty of leaf growth so they don't need the potash, they need nitrogen - eg chicken manure pellets. If this sort of veg is checked while growing, by a dry spell for instance, the plants might 'bolt' that is send up a flowering stem and 'run to seed' which you don't want to happen, so try to avoid letting the soil dry out completely.
Root veg don't like freshly manured soil - it makes the roots fork and become deformed, so grow them in soil that was manured the previous year.
Also, I don't want to give the impression that you need to be giving veg loads of fertiliser all the time - a good manure/compost dug in iduring the autumn or early spring is usually all that is needed
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Why don't you get a really basic book like the vegetable gardener in the dr. hessayn series. it explains simply about what to fertilise and crop rotatiion etc.as well as germination times, produce grown, etc.
Pop to your local library they would have books on gardening that you could get out and read sometimes even videos sometimes it help watching videos or you could even try youtube website, I like to watch claires allotment she does pretty well at making videos.
Like the name hollie hock change to your other name festive name I guess. Holly hock the flower plant is really pretty only started to grow them my self this year.
When I started growing veg I started with runner beans and found I liked them even more than shop brought ones much better taste, I like watching Gardeners World, good when Joe Swift got an allotment that was interesting and also on iplayer I watch Beechgrove Gardens the scottish gardening TV programme when back on I guess march time not much on TV on gardening at mo.
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I always go for climbing French beans (Cobra), as I think they're much nicer than runner beans, and easy to grow as long as you don't try to start them off too soon. I also grow mange-tout (similar to sugar peas), which are as easy as peas and there's less waste as you eat the whole pod. As you say, they're never cheap to buy, and it's lovely to have them really fresh. Norli are a good variety.
Personally I think onions are a bit of a waste of space as they're generally cheap to buy and the ones you grow taste much the same as the ones you buy. Have you thought of shallots? They're also dead easy, and you end up with something that is not cheap in the shops. You just buy a bag of seed shallots, stick them in the ground, and each one turns into a little bunch of shallots.
Make sure you protect your veg as slugs like to eat it away before you get it I find using plasic large water bottles with the bottom cut off that helps keep slugs away from the small plants - keeping the lid on, the plants can then grow on a bit when they are still young, pop up netting is good from http://www.pippagreenwood.com/products/protect-your-crops
What is you best veg you like to eat?
Well, almost right, the courgettes are the fruits that follow the flowers
but yes, once the plants get going, if they get the right weather just stand back and you can watch them grow 
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Cabbages, sprouts, lettuces, leeks, broccoli, onions, etc you eat the leaves - you don't want them to flower at all - you want to encourage plenty of leaf growth so they don't need the potash, they need nitrogen - eg chicken manure pellets. If this sort of veg is checked while growing, by a dry spell for instance, the plants might 'bolt' that is send up a flowering stem and 'run to seed' which you don't want to happen, so try to avoid letting the soil dry out completely.
Root veg don't like freshly manured soil - it makes the roots fork and become deformed, so grow them in soil that was manured the previous year.
Also, I don't want to give the impression that you need to be giving veg loads of fertiliser all the time - a good manure/compost dug in iduring the autumn or early spring is usually all that is needed
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
Why don't you get a really basic book like the vegetable gardener in the dr. hessayn series. it explains simply about what to fertilise and crop rotatiion etc.as well as germination times, produce grown, etc.
Pop to your local library they would have books on gardening that you could get out and read sometimes even videos sometimes it help watching videos or you could even try youtube website, I like to watch claires allotment she does pretty well at making videos.
Link below
https://www.youtube.com/watch?v=rRMMtOCMAV0
Like the name hollie hock change to your other name festive name I guess. Holly hock the flower plant is really pretty only started to grow them my self this year.
When I started growing veg I started with runner beans and found I liked them even more than shop brought ones much better taste, I like watching Gardeners World, good when Joe Swift got an allotment that was interesting and also on iplayer I watch Beechgrove Gardens the scottish gardening TV programme when back on I guess march time not much on TV on gardening at mo.
Do you like watching these gardening programmes?