Landscaping For Dummies, 2nd Edition
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When choosing plants for your landscaping, be sure to select plants suited for your weather zone. Most perennials are marked with a hardiness zone to indicate the minimum temperatures it can tolerate. Note the plant's hardiness for the best growing and ability to survive the winter. Use this table to find your area’s hardiness zone:

Plant Hardiness Zones for the U.S.
Fahrenheit Celsius
Zone 1 Below –50°F Below –46°C
Zone 2 –50°F to –40°F –46°C to –40°C
Zone 3 –40°F to –30°F –40°C to –34°C
Zone 4 –30°F to –20°F –34°C to –29°C
Zone 5 –20°F to –10°F –29°C to –23°C
Zone 6 –10°F to 0°F –23°C to –18°C
Zone 7 0°F to 10°F –18°C to –12°C
Zone 8 10°F to 20°F –12°C to –7°C
Zone 9 20°F to 30°F –7°C to –1°C
Zone 10 30°F to 40°F –1°C to 4°C
Zone 11 40°F and up 4°C and up

About This Article

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About the book authors:

The National Gardening Association offers plant-based education in schools, communities, and backyards across the United States, through the award-winning websites garden.org and kidsgardening.org. Teri Dunn Chace is a writer and editor with more than 35 titles in publication, and a long and distinguished career in horticulture and natural history. Phillip Giroux owns a landscape design firm. Bob Beckstrom is a home improvement expert and veteran author. Lance Walheim, former staff garden writer for Sunset magazine, is the nationally recognized author of more than 30 widely read garden books, including The Natural Rose Gardener.

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