In the world of tablets, there are great products and there are cheap products, but very few great, cheap products. Fortunately, for those of you unwilling to shell out $500 for an Apple iPad 2, and wary of buying a piece of junk, Amazon's $199 Kindle Fire tablet should be at the top of your wish list.
Deep rooted plants such as tomatoes, zucchini, corn, and perennial fruits and vegetables, do best in planters at least 22 inches tall, or shorter if the ground below is usable.
Rows of tomatoes should be at least 5 feet apart, or wider if space allows. In the row, space the plants 18 to 36 inches apart, using the wider measurement if you use cages. We grow our tomatoes up wire fences so we can fan them out and because almost all the varieties we grow are tall, indeterminate types.