Realworld Imagery Plant Zones Table

Hardiness Zone means the annual minimum temperature range a plant will survive. This is only a guide, as many other factors can affect a local region such as humidity, heat, moisture, soil, winds, and other conditions. Hardiness Zones were originally developed by the United States Department of Agriculture (USDA). Many plants hardy in lower zones usually grow well in higher zones.

Zones	Fahrenheit degrees	Celsius degrees
Zone 1	below -50 F	below -46 C
Zone 2	-50 to -40 F	-46 to -40 C
Zone 3	-40 to -30 F	-40 to -34 C
Zone 4	-30 to -20 F	-34 to -29 C
Zone 5	-20 to -10 F	-29 to -23 C
Zone 6	-10 to 0 F	-23 to -18 C
Zone 7	0 to 10 F	-18 to -12 C
Zone 8	10 to 20 F	-12 to -7 C
Zone 9	20 to 30 F	-7 to -1 C
Zone 10	30 to 40 F	-1 to 4 C
Zone 11	40 to 50 F	4 to 10 C
Zone 12	above 50 F	above 10 C

Plants CDs specifically for Zones 2 thru 7 view Professional Trees & Shrubs II and Foreground Plants: Zones 2-7 Color and Zones 2-7 Foliage.

Plants CDs specifically for Zones 8 thru 12 view Professional Trees & Shrubs III, Tropicals & more, and Foreground Plants: Palms, Zones 8-12 Color, and Zones 8-12 Foliage.

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