This year we have planted: Tomatoes, Cucumbers (already getting tons of them), Grapes (this one is going to be interesting), and Watermelons that apparently never went away from last year....weird!
I encourage you, if you can...to plant your favorite veggie soon! Take advantage of just buying seeds and enjoying what You grew!
I realize, if you don't already have a garden, it may take some time and effort and maybe even a little money to get it going. In the long run...it's worth it and easier upkeep year to year once you have everything set. For example: we have a raised garden bed...my husband had to buy the wood and piece it together to create the raised and step effects. It looks so nice and it is done! We also (well husband again) put in irrigation. I suppose not a necessity, but it is nice when you don't feel like getting out the water hose or a bucket. :-) Also, you would need stakes for such items as tomatoes and such. After the initial year of setting up, it is cheaper than buying from the market.