Hardiness zones for seeds, bulbs and plants, as determined by the u.s.
10+ U.s. Department Of Agriculture Plant Hardiness Zones PNG. No posters of the usda plant hardiness zone map have been printed. If you see a hardiness zone in a gardening catalog or plant description, chances are it refers to this usda map.
How to find out your hardiness zone and last frost date ... from 3.bp.blogspot.com
The zone is defined by climatic conditions including temperature. Maximum summer temperature, humidity, rainfall. Plant hardiness zones help to define the optimum growing climates for particular groups of plants.
The usda hardiness zone map is a good system because many plants are limited by minimum winter temperature, but many plants are also limited by other factors which are not considered in delineating the usda hardiness zones.
Planting zone map for 2019 combines data from the usda with specific geographical information to provide a complete look at your growing area. A hardiness zone is a geographic area defined to encompass a certain range of climatic conditions relevant to plant growth and survival. Department of agriculture plant hardiness zone map supersedes the 1965 version. Hardiness zones are geographical area in which a given category of plants are able to grow and survive.
