Gardening Hardiness Zones

Also called a planting zone or a gardening zone a plant hardiness zone is crucial for the growth of your plants. The best time to plant trees shrubs and perennials depends to some extent on your usda hardiness zone.

The Plant Hardiness Zone Map Below Maps Zones Of Minimum Temperatures These Give An Indication Of W Plant Zones Plant Hardiness Zone Plant Hardiness Zone Map

Click here to go to the usda website and see a map of your state s zones.

Gardening hardiness zones. This means that the plant should grow in any planting zone between 4 and 8 inclusive. A hardiness zone is a geographic area with consistent climate conditions that allow specific plants to grow and thrive. Scroll to read more about each hardiness planting zone or jump directly to your zone using the links below.

Lowest average temperatures of 0 f to 10 f or 17 8 c to 12 2 c. In zones 9 through 1 where temperatures dip to below freezing during the winter deciduous trees and shrubs should be planted right around the first killing frost in the fall. Click here for more information about hardiness maps.

It s based on the average yearly minimum winter temperature that is divided into 10 degree fahrenheit zones. The nine major plant hardiness zone numbers describe canadian growing conditions where zero 0 describes the harshest environment and 8 represents the mildest. So a plant might have a zone range of 4 to 8 usually written as 4 8.

Lowest average temperatures of 10 f to 0 f or 23 3 c to 17 8 c. Department of agriculture maintains the usda plant hardiness zone map which allows gardeners and farmers to determine which plants are likely to flourish throughout specific regions of the united states. The hardiness zone map is useful for home gardeners through to nursery owners and large scale orchardists to refer to these zones before investing in plants.

Basically a hardiness zone is a detailed map crafted to help you grow your garden. Plants generally have a range of hardiness zones. A hardiness zone is a geographic area defined to encompass a certain range of climatic conditions relevant to plant growth and survival.

If you see a hardiness zone in a gardening catalog or plant description chances are it refers to this usda map. Lowest average temperatures of 20 f to 10 f or 28 9 c to 23 3 c. Usda plant hardiness zone 1 is the coldest zone designation for the united states.

Know that planting times will vary according to your hardiness zone. The map is divided into thirteen distinct 10ºf zones which are further divided into sub zones of 5 f. The smaller the number the colder the climate just like a thermometer.

Unless otherwise specified hardiness zone or simply zone usually refers to the usda scale. To find your usda hardiness zone enter your zip code or use the map below. What is the relevance of the numbers.

Find your zone using the map below or enter your zip code. Zone 1 zone 2 zone 3 zone 4 zone 5 zone 6 zone 7 zone 8 zone 9 zone 10 zone 11 zone 12. The original and most widely used system developed by the united states department of agriculture as a rough guide for landscaping and gardening defines 13 zones by annual extreme minimum temperature.

Considered the standard measure of plant hardiness the usda plant hardiness zone map is based on average annual minimum winter temperatures. The usda hardiness zone map divides north america into 11 separate planting zones. Each growing zone is 10 f warmer or colder in an average winter than the adjacent zone.

It has been adapted by and to other countries in various forms.

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