A handy PDF guide to growing Vegetables from Teagasc that I found online

Vegetable Growing

The selection of fresh vegetables now available in shops and supermarkets is
probably greater than ever before. But there’s a huge amount of satisfaction
to be had from growing part of the food we eat. A well managed garden or
allotment is an asset to any family and vegetable growing can rapidly develop
into an absorbing hobby.

The quantities of vegetables to grow will naturally depend on circumstances.
It can be as simple as growing a pot of parsley on your back doorstep or you can
make it as big and fancy as you like. If there’s only a small area available
preference should be given to items where freshness is especially valuable such
as lettuce, herbs, spinach, parsley, peas and beans. If there’s more ground add
brassicas, onions, carrots, beetroot, rhubarb and early potatoes to the mix.
It will also add interest to try out some new or unfamiliar kinds each year.

http://www.teagasc.ie/publications/2011/889/Guide_to_Veg_Growing.pdf