
Laura D. Eisener, Massachusetts landscape architect and Meadowscaping design consultant, believes in giving people the skills to create their own environmentally sound landscapes.
For years now, my friend Jean has been spreading the word on biodiversity and the problems posed by our lawns. I think that Jean and her business partner, Barbara, have been especially savvy in teaching the principles of biodiversity to middle school kids in particular. It’s one way to influence a generation of parents addicted to lawn chemicals and at the same time raise the consciousness of a generation that will be responsible for the planet’s future.
Tik Root writes on biodiversity and lawns at the Washington Post: “For many Americans, [summer] means blankets of grassy green for kids to play in, or families to picnic on.
“There are an estimated 40 million to 50 million acres of lawn in the continental United States — that’s nearly as much as all of the country’s national parks combined. In 2020, Americans spent $105 billion keeping their lawns verdant and neat. But our grass addiction comes at an environmental cost.
“According to the Environmental Protection Agency, maintaining those lawns also consumes nearly 3 trillion gallons of water a year as well as 59 million pounds of pesticides, which can seep into our land and waterways.
“Department of Transportation data shows that in 2018, Americans used nearly 3 billion gallons of gasoline running lawn and garden equipment. That’s the equivalent of 6 million passenger cars running for a year.
“As these issues are becoming more prominent in climate change discussion, there are steps you can take to more sustainably manage the impact of your lawn. … Having less grass and more plants is among the most important factors in keeping a yard eco-friendly.
“ ‘Lawn, ecologically, is dead space,’ said Doug Tallamy, an entomologist at the University of Delaware and author of ‘Nature’s Best Hope: A New Approach to Conservation That Starts in Your Yard.’
“The solution, he says, is ultimately less lawn. He recommends people aim to cut the amount of turf grass in their yard in half. … Laying down mulch is one place to start. It quickly kills grass and offers a blank canvas for planting. … Invasive plants, Tallamy said, ‘are ecologically castrating the land around us.’ Native plants, on the other hand, often have deep root structures, making them good for storing water or providing drainage. They have also co-evolved for local conditions. …
“Eric Braun, the water resources manager for the town of Gilbert, Ariz., is quick to emphasize that water-friendly landscapes, also known as xeriscapes, don’t have to look like moonscapes.
“ ‘Xeriscape doesn’t mean one saguaro and a cow skull. It can be very lush and inviting,’ said Braun. ‘The number one thing was showing people that it can be a beautiful landscape.’ he said. …
“More broadly, Tallamy said native landscapes can help refocus our gardens on the ecological purpose of plants, which is to produce food. Plant energy gets passed up the food chain, often via insects. But many insects only eat one native plant species, or group of related plants. So, if we are planting nonnative plants, that food doesn’t necessarily transfer from creature to creature, and the ecosystem can stall.
“Monarch butterflies, for example, famously rely on milkweed, and as the plant has become less abundant, the monarch population has plummeted. Bird species are also in decline, as are more than 40 percent of insect species. The United Nations estimates that, globally, 1 million plant and animal species are under threat of extinction.
“Tallamy said native flora better supports native fauna and, as a result, helps combat these declines. Tallamy is a fan of oak trees, which come in 91 native species, grow almost everywhere in the country and attract caterpillars, a key species for supporting other wildlife — to raise a clutch of chicks, a pair of robins needs between 6,000 caterpillars and 9,000 caterpillars in just 16 days, Tallamy said. …
“Others put less emphasis on nativity, and more on the diversity of species and types of plants in a yard.
” ‘Yes, we want natives but let’s be inclusive and not exclude plants that have come from somewhere,’ said Juliet Stromberg, a professor at Arizona State University, who was one of more than a dozen ecologists who wrote a letter arguing that a plant’s origin is less important than its environmental impact.
“ ‘What I would suggest is just loosening the reins a little bit,’ she said. ‘If you’re bringing in the plant that’s the same genus, the insects are going to be fine.’ “
More at the Post, here.
Hear, hear! And the hummingbirds love the white impatiens in the pots.
And here I thought hummingbirds only went for the red flowers!
Red is their favorite, but in a pinch, white will do.
Last week I read a story about a man who´’s facing legal troubles with neighbors and city council for his refusal to mow his biodiverse lawn. Especially in the US you can have those prickly neighbors walking around measuring if their neighbor´s grass isn´’t any longer then 8 inches.
Legal cases can be won. See my April 20, 2021, post “Saving Nature from Bullies.”
Or lost. I know a man who lost his house over his refusal to cut a tree because his neighbors claimed it obscured their garden. He refused, neighbors went to court and got a verdict that included a penalty payment for every day he didn´t comply. Man appealed and lost. Due to the penalty payment he lost his house.
Great subject. As we approach another serious drought in Southern California, we are talking about replacing our lawn for succulents, it must be done!
I hope you will blog about it.