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Each plant on our website lists a range of zones it will grow in. For example, if you see "6-9", this means the plant will grow in Zone 6, 7, 8 and 9.
Please Note: There are many variables involved in plant hardiness. We use generally accepted cold hardiness zone information for each plant. This does not consider microclimates created by altitude, rainfall, or directional location. In any given year, temperatures can fluctuate a full zone, up or down. Such factors as lack of snow cover, early or later extremes and protections from mulch, or buildings can also have an effect. If you have questions about plant hardiness, we encourage you to contact your local County Extension Office.