What is the name of the system that identifies the area of the U.S. where a plant species can survive, based on minimum temperature?

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The term "plant hardiness zone" refers to a system that categorizes regions of the United States based on their minimum temperatures. This system helps gardeners, landscapers, and agriculturalists identify which plants are likely to thrive in specific areas based on climate conditions, particularly cold hardiness.

The concept is critical for anyone involved in planting or landscaping because it provides guidance on the types of plants that can survive in a given location, thus aiding in making informed decisions that can lead to successful plant growth. This understanding can prevent the selection of plants that are not suited to the local climate, which may lead to plant failure and wasted resources.

While the other options mentioned may sound relevant, they do not specifically relate to the established system that uses minimum temperature to categorize plant survival zones in the U.S. The plant hardiness zone is recognized officially, such as through the USDA Plant Hardiness Zone Map, which is a widely accepted reference for determining climate suitability for various plant species.

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