If you want to grow your own vegetables and fruit in Sussex, have a look at Suttons Seeds website.  My auntie Joan swore by Suttons - she loved them and never bought anything else. 

The website has lots of useful information on it, including what to sow and grow when, plus they have some mouth-watering special offers.  

If you're the sort of person who moves a lot, you could look at their Stacks of Flavour range.  It aims to make fresh, home-grown fruit and vegetables accessible to everyone, however big their garden.   The great thing about the range is that it's portable, so you can take your veg garden with you when you move - and also, they are stackable, so you can build a really productive garden over time.  I think it's a great idea - and you can get different types - herbs, salads, strawberries, speedy leaves, chillis and more.  Click here to find out all about the range. 

And there are plenty of vegetable seeds - including a fast growing vegetable section called Speedy Veg Seeds