The USDA plant hardiness Zone One is largely the northern hemisphere’s treeless tundra areas, or the “harshest of the harsh.”
The USDA plant hardiness zone six is dominantly in the northern hemisphere including a large area of Europe, Korea and northern Japan.
The U.S.D.A. classification of Zone Four for garden plants includes many regions in the northern hemisphere. What does it mean to be in Zone 4?
Growing degree days, heat and cold hardiness recommendations, and GIS-aided maps help gardeners understand what to plant and when.
USDA plant hardiness zone five is the 40°N zone unless impacted by water or elevation influences, and is restricted to the northern hemisphere.
Ocean currents and other geographical elements affect plant hardiness zones as well as latitudes, leading to interesting comparisons for gardening.
Is your garden ready for plants? Check out your dirt’s pH, consistency, and other characteristics to determine what to plant, and where.
Plant Hardiness Zone Maps tell us what plants can grow in an area, even down to the zip code – how can we improve growing zone maps to incorporate ranges?