Asked by: Valquiria Zhao
asked in category: General Last Updated: 9th June, 2020

What does hardiness zone 6a mean?

Subset Zone Temperatures
Each gardening zone is divided into two subsets; zone 6 subsets are 6a and 6b. Each subzone is separated by 5°F. That means for Zone 6: Zone 6: This zone has a minimum average of temperatures of -10° to 0°F. Zone 6a: This subzone has a minimum average temperature of -10° to -5° F.

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Accordingly, what can I grow in zone 6a?

The best plants for zone 6 that can be sown outside as early as March are cold weather crops like lettuce, radishes, and peas.

Perennial favorites that thrive in this zone include:

  • Bee balm.
  • Coneflower.
  • Salvia.
  • Daisy.
  • Daylily.
  • Coral bells.
  • Hosta.
  • Hellebore.

Also, what does hardiness zone 7a mean? 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.

Herein, what is my growing zone?

If you see a hardiness zone in a gardening catalog or plant description, chances are it refers to this USDA map. To find your USDA Hardiness Zone, enter your zip code or use the map below. Click here for more information about hardiness maps. Find your zone using the map below or enter your zip code.

What does USDA hardiness zone mean?

A hardiness zone is a geographic area defined to encompass a certain range of climatic conditions relevant to plant growth and survival. For example, a plant may be described as "hardy to zone 10": this means that the plant can withstand a minimum temperature of −1 °C (30.2 °F) to 3.9 °C (39.0 °F).

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