Tomatoes
Ah! This is what gardeners live for. I don't care where you live or where you shop, you simply cannot buy, for any money, a tomato that will taste anywhere near as good as the ones you grow at home. You also can't get really good tomato production until your soil reaches a fairly high level of richness. If this is your first year with your garden, don't be too surprised by paltry tomatoes; if you work your soil properly, it just gets better every year. There are "determinate" and "indeterminate" varieties of tomatoes. Determinate tomatoes will reach a set height and stop growing; indeterminate ones will just keep getting taller and bushier until the frost kills them. I know of no advantages or disadvantages between them as far as quality of the fruit; obviously, indeterminate plants are going to require more space and more support. There are lots of tomato types as well: cherry, patio, plum, standard, "beefsteak". For the most part, which to grow depends on your personal taste and circumstances. Cherry tomatoes are quite sweet but have thick skins; they will grow well in containers as well as in the ground and will start producing early; but their fruit is limited to less than an inch in diameter. Patio tomatoes are intended for container gardening; also called "ornamental" tomatoes, they produce early and yield fruit around 1 to 1½ inches in diameter, but tend to have a fairly limited yield. Plum tomatoes are often described as best for sauce, as they are less juicy, more "meaty". Some people say they aren't as sweet as other types, but a homegrown plum tomato is still going to be sweeter than the sweetest store-bought tomato. "Beefsteak" tomatoes (including such varieties as "Beefsteak", "Big Boy", and "Better Boy") are bred for size, frequently reaching 6-7 inches in diameter. In my opinion, they reach this size by sacrificing sugar for starch; to me, they taste bland and have a somewhat grainy texture. I avoid them. In fact, I stick to the standard garden tomato for the most part, though my wife grows a few cherries each year in a big old barrel near the herb garden. There are three varieties that I have found to provide excellent sweet fruit in abundance over the years: Early Girl, Jet Star, and Celebrity. Each produces a large number of 3-4 inch tomatoes. I've also gotten good results with "4th. of July", a variety bred for early production, but since this plant produces fairly small fruit, I've decided it's not worth the space. I plant all my tomatoes in two parallel rows in a 3-foot bed, staggering the placement of the plants in each row and keeping them about 18 inches apart. This is much closer than the recommended placement, but my plants do fine. When all danger of frost is past (about mid-June for me) I put your standard drugstore "tomato cages" around each plant. This will keep them upright until about mid-summer, after which I will have to tie most of the cages to 6-foot wooden stakes driven at least a foot into the ground, else the weight of the tomatoes will collapse the plants, cages and all.