Essentially, the USDA and Harvard’s Arnold Arboretum established a set of guidelines starting in 1960 (a Zone Map) to help gardeners figure out how well a plant would survive the winter cold in their area of the USA. They looked at historical weather patterns, utilized sophisticated equipment, and divided the US into 13 zones, which differ by 10 degrees Fahrenheit. The current map also further divides these zones into A & B, which differ by 5F.
This provides gardeners the exact coldest average temperatures for their zip code and latitude/longitude. This can help determine which are the best annual and perennial herbs to plant outside. Knowing your zone can help you plant in the spring and in the fall. There are many hardy herbs to choose from for growing in zone 5.
Growers Exchange specializes in herb plants - whether you choose from our culinary, medicinal, flowering, aromatic, native, rare or exotic plants, rest assured that we are committed to a greener way of growing. All our herbs are non-GMO. We are committed to sound growing practices and have been since the day we started.
Please Note: We sell plants online, NOT seeds. Our plants are well rooted and ready to plant - our standard pot is 3.5 inches. After you buy, we will ship our plants when they are ROOT READY. They will have good top growth unless they are coming into or out of dormancy. We grow all of our plants to the point that they are ready to go into the ground or a container.
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