Tomatoes are often one plant that provides a big harvest at the same time. Before the tomatoes are planted outside, you could grow some speedy spring vegetables to take their spot before they’re ready for transplanting. Start your tomatoes as early as February 1 or as late as April 1. If you start them early in February, they will get pretty big before they can go outside, but you will get an earlier harvest. Typically, you can sow them six weeks before the last frost, transplant them just after the last frost, and harvest from July to September. Make sure to harvest all the tomatoes 2-3 weeks before the last frost. Then, you can plant quick-growing fall vegetables or even your garlic for next year in their place. Also, be sure to grow different varieties of tomatoes to help with varying maturity times.