What is my climate zone for planting?

Zone 2 the tablelands of south east Queensland, New South Wales and Victoria, and the uplands of central Tasmania. Zone 3 includes much of the southern half of the continent, except for localities on or near the coast.

What is a heat zone in gardening?

Heat zones are the high temperature equivalent of cold hardiness zones. The American Horticultural Society (AHS) developed a “Plant Heat Zone Map” that also divides the country into twelve numbered zones.

How hot does Zone 7 get?

Subset Zone Temperatures That means for zone 7: Zone 7: The overall zone has a minimum average of temperatures of 0° to 10°F. Zone 7a: This subzone has a minimum average temperature of 0° to 5° F. Zone 7b: This subzone has a minimum average temperature of 5° to 10°F.

Why are there heat zones in the garden?

However, USDA hardiness zones do not take summer heat into account. That means that while a particular plant’s hardiness range may tell you that it will survive your region’s winter temperatures, it does not address its heat tolerance. That’s why the heat zones were developed.

How are cold hardiness zones used in gardening?

For decades gardeners have used cold hardiness zone maps to figure out whether a particular plant can survive winter weather in their backyard. The USDA put together the map dividing the country into twelve cold hardiness zones based on the coldest recorded winter temperatures in a region.

How many heat zones are there in the AHS?

The AHS Plant Heat Zone Map includes 12 zones, each indicating the average yearly number of days with temperatures over 86°F (30°C). This threshold represents the point when the plants start suffering from the heat.

What are the ratings for a heat tolerant plant?

But more and more, you will begin to see two ratings for a given plant, such as 5-10, 11-1. The first pair of numbers is the cold Hardiness Zone. This plant will survive winter temperatures in zones 5 to 10. The second pair of numbers is the Heat Zone. 11-1 indicates that the plant is heat tolerant in zones 11 through 1.