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Zone 3 - Vegetable Planting Calendar Guide

Garden Zone Map

Zone 3 is the coldest of all the USDA garden zones in the United States. This zone has the shortest growing window for gardening. With a last frost date of May 15th and first frost date of September 15. These dates will vary a week or two so it's important to watch the weather before planting. Annual minimum temperature for zone 3 is -30F.

Zone 3 Hardiness Dates
First Frost DateLast Frost Date
June 15thSeptember 15th
Use your last and first frost dates to calculate your planting schedules.

Using the planting schedule below will help you get the most out of your garden. Starting seeds indoors before your last frost date will give you a jump start on the growing season. Knowing when to transplant seedlings outdoors will help to maximize your harvest. 

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Zone 3 Planting Schedule
Zone 3 Planting Schedule