The first sowing should be done as soon as possible, but only when there is no danger of frost. Resistant plants normally tolerate temperatures below freezing and are usually the first to be placed in the garden as soon as the soil can be worked, which usually occurs about four weeks before the date of the last frost. For most of the United States, the best time to start spring harvests is, well, now. However, for more accurate planting recommendations based on your area, use this handy calendar.
Planting schedules are designed to calculate the best time to start seeds and plant a garden. Sowing time is based on the dates of the first and last frost. For example, if planted in hardiness zone 5, the date of the last frost is usually between April 1 and 15, and the date of the first frost usually falls between October 16 and 31.These dates will partly determine when is the best time to plant. Two of the most important aspects of gardening are knowing when to plant and what to plant in your vegetable garden or flower garden.