Expert advice on gardening in zone 4 |

Expert advice on gardening in zone 4 |

Hardiness zones are areas of the country whose average temperatures are the same in winter. They are displayed in bands on the USDA Hardiness Zone Map and numbered zone 1 (coldest) to zone 13 (warmest).

They’re important because — with hardiness ratings tied to individual plant varieties and indicated on plant tags and on websites — it’s easy to know which plants will survive the winter in your area.

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