As a new gardening season dawns, Seattle has landed in Zone 9a — the same zone as northern Florida. According to the USDA, about half of the country edged up half a zone, the equivalent of 5 ...

rain-heavy climate of Seattle and drier, inland Tucson. If you'd like to view the zone for your area, you can use the USDA's interactive map to find the plant hardiness zone in your exact ...

Hardiness zones are a guide and not the only factor ... For example, the plants that thrive in low elevation, rainy and coastal Seattle are much different than those that prefer high elevation ...