HALF THE NATION’S 80 million gardeners will find themselves officially declared a half-zone warmer today, when the United States Department of Agriculture launches the first update since 1990 to its Plant Hardiness Zone Map. No, the new map is not technically a confirmation of a trend toward global warming, the agency says—a different set of data is used in it than in those longer-range calculations—but it is a more accurate picture of growing conditions across America, particularly in tricky areas such as mountainous ones that may have been rated too cold or too warm in previous versions. We have ever-more sophisticated computers to thank for enabling scientists to capture the more accurate take on things.
“The increase in our computing power today allows the research team to build into their algorithms things they knew were important factors in 1990, but couldn’t include,” said Catherine Woteki, Chief Scientist and Under Secretary for Research, Education and Economics for the USDA, in an interview yesterday. Factors such as elevation, the slope of land, or how close to a body of water a location is, can cause sharp variation despite close adjacencies.
“Taking those into account now provides a lot more detail,” Woteki said, “and people will be able to see islands of heat, and also cool ones, on the new map. As a scientist and a home gardener, I love seeing this so much more clearly.”
The new map is built using digital Geographic Information System technology and you’ll notice the sharper boundaries and better resolution right away when you visit its interactive website. To find out whether your zone has shifted, start here. Though I’ve always thought of myself as a Zone 5B, I’m now officially there, no longer in Zone
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I am often asked to recommend plants for problematic garden areas during my call-in radio program or after public-speaking engagements. As a result, over the years I have developed a list of my top picks for sunny and shady gardens depending on whether the soil is dense, heavy, and clay-based, or lean, sandy, and quick-draining. Fortunately, I have experience gardening with both soil types, and so I know that each presents its own challenges and opportunities. Here are a few options for perennials, trees, and shrubs that can survive and even thrive in the trickiest soil conditions.
Parasitic plants derive their required energy and nutrition from other plants, hindering their growth. Here is a list of some Unwanted Plants that are Parasites!
Can I grow acai berry trees? Often compared to the blueberry for its similar nutritional benefits, acai products made from this trendy superfood have been finding their way onto grocery store shelves. But due to their short shelf life, fresh berries are difficult to purchase outside acai berry growing zones. Learn all about how to grow acai berries at home.
Today we celebrate Earth Day for the 46th time since U.S. senator Gaylord Nelson suggested the idea for a national day focusing on the environment. After its first celebration on April 22 1970 in the US, Earth Day has grown into a worldwide environmental movement raising awareness of serious issues such as pollution, global warming, deforestation and the detrimental effect of urbanised societies on the environment.
When was the last time you replaced the air filters in your home? With poor air quality becoming a growing concern across the United States and Canada, you are probably more aware of your home’s air filters than ever before. Air filters help keep our home’s air clean and free of dust, dander, and pollutants. This not only helps us breathe easier, but it also keeps the HVAC systems in good shape and prevents them from experiencing potential damage due to the buildup of airborne particulates.
The solitary mason bee is a North American native pollinator that deserves more attention and respect. Honeybees do a lot of pollinating, but they are not native, their populations are in decline, and they are not as efficient at pollinating as some other species, including mason bees. Learn more about this humble bee and how to support it in your garden.
I have been reading the Penguin Encyclopedia of Gardening which aims to provide ‘….an explanation of words used in a technical sense in a horticultural context in the UK and USA.’ Set out as an A to Z this resulting post, missing a thousand definitions, is unlikely to rank highly with search engines.
You don’t have to be a Starbucks aficionado to know Americans are obsessed with coffee. They love it so much that it’s the most popular beverage in the country, with consumption being at a two-decade high, according to the National Coffee Data Trends report.
Many of our tried and true recipes and dishes can be ‘modified’ to increase vegetables, fiber, and fruits by making simple adjustments to meals we already eat. Many of us love watching chefs on TV but tend to go back to old favorites, i.e., macaroni and cheese, potato salad, beef stew, soup, fried chicken, broccoli casserole, spaghetti, etc.