What is a hardiness zone based on?

The coldest temperatures a plant can survive.

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  1. The color of a plant's flowers
  2. The number of seeds a plant makes
  3. The coldest temperatures a plant can survive ✔

Why: Hardiness zones group regions by climate so gardeners can choose plants suited to local cold.

Huh, didn't know that: Hardiness zones group regions by climate so gardeners can choose plants suited to local cold.

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Hardiness zones help plants weather the weather.
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References

Answer: The coldest temperatures a plant can survive. Hardiness zones group regions by climate so gardeners can choose plants suited to local cold.

  1. Scouting America: Plant Science www.scouting.org/merit-badges/plant-science
    Find out what hardiness zone you live in
    Checked 2026-11-07.

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