Zones are divided into 5-degree F half zones, which are lettered "a" (northern) or "b" (southern). For example, the coldest hardiness zone in the lower 48 states on the new map, 3a, covers small ...

Add Yahoo as a preferred source to see more of our stories on Google. Perennial flowers may be expensive but are well worth the investment. Summer perennials come back year after year, and many are ...

March arrives, and the garden urge hits hard. The seed catalogs have been studied, and the beds are calling, but one question stops most gardeners before they start: Is it actually time to plant where ...

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Longtime master gardener John Nash, with more than 65 years of digging in the dirt, is a bit concerned that gardeners will take the news that they might be in slightly warmer zones for cold-hardy ...

Freezing weather may make it hard to believe, but many Chicago-area gardeners — and their plants — are now living in a slightly warmer world, according to a new version of the USDA’s plant hardiness ...

With the arrival of spring in North America, many people are gravitating to the gardening and landscaping section of home improvement stores, where displays are overstocked with eye-catching seed ...