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Growing Zone Information

  zone map key code


This USDA map divides the country into PLANT HARDINESS ZONES based on average lowest winter temperatures (see map below). We include ZONE ranges in our descriptions of hardy plants so you can tell if the plants you choose can survive in your location or the location of a gift recipient. We ship live plants, roots and bulbs at the right time for planting for your zone.

For annuals we list your expected Spring frost free date - this is helpful in determining when you can safely plant annual seeds and plants.

Your Zone Zone 10 Zone 9 Zone 8 Zone 7 Zone 6 Zone 5 Zone 4 Zone 3
Your Lowest Temp (F.) 30° to 40° + 20° to 30° 10° to 20° 0° to 10° -10° to 0° -20° to -10° -30° to -20° -40° to -30°
Your Last Frost Date (approximate) February Early March Early April Late April Mid- May Late May Early June Mid- June

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Gardening Tip of the Day

  • The easiest and best place to store excess turnips, parsnips, leeks, onions, carrots and similar root crops is in the garden. They actually become sweeter and tastier after a frost.
    Before the ground freezes, cover the beds with a thick layer of straw or chopped leaves to insulate the soil and keep its temperature even. A sheet of plastic will keep the mulch in place.
    To harvest root crops, simply roll back the plastic, push aside the leaves/straw, and lift the roots from the soil with a spading fork. Replace the covering to keep your "root cellar" insulated all winter. With this method, you could be harvesting sweet carrots and parsnips in January, even if there's snow on the ground!