By Mary Talbot
In a case of taking "the grass is always greener" a bit too literally, American homeowners have long strived to make their lawns brighter, lusher and more velvety than their neighbors'. But all that competition has a devastating environmental impact. Every year across the country, lawns consume nearly 3 trillion gallons of water a year, 200 million gallons of gas (for all that mowing) and 70 million pounds of pesticides.
Adams County, Pennsylvania Master Gardener, BBG Graduate and NRDC Member, Audrey Hillman.
You may also know that turf grass, however welcoming it looks for our bare feet, provides virtually no habitat for pollinators and other animals and plants that make up a healthy, diverse ecosystem. In fact, these lawns can do substantial harm to the environment and to both vertebrates and insects. Birds, for instance, may ingest berries and seeds that have absorbed pesticides from the ground. Likewise, rainwater runoff from lawns can carry pesticides and fertilizers into rivers, lakes, streams and oceans via the sewer system. This can poison fish and other aquatic animals and harm humans who swim, surf and eat seafood that may be contaminated. And then, of course, lawn mowers can pollute the air.
Luckily, today more Americans are ready for a change.
"We're on the cusp of a transition that will likely take place over the next 10 to 15 years, away from the conformity of mowed turf," said Ed Osann, senior policy analyst and water efficiency project director with the Natural Resources Defense Council's Water program.
He adds that eradication of all grass isn't the goal. "We're not declaring war on turf or suggesting that we remove every square foot of it. But we want to encourage people to think about whether there are places in their yards that can be converted to allow for a more diverse and sustainable landscape."
The No-Mow Movement
A growing number of homeowners are converting part or all of their lawns to a less thirsty form of landscape.
These no-mow yards fall into four categories:
1. Naturalized or unmowed turf grass that is left to grow wild;
2. Low-growing turf grasses that require little grooming (most are a blend of fescues);
3. Native or naturalized landscapes where turf is replaced with native plants as well as noninvasive, climate-friendly ones that can thrive in local conditions; and
4. Yards where edible plants—vegetables and fruit-bearing trees and shrubs—replace a portion of turf. (According to the National Gardening Association, one in three families now grows some portion of the food they consume).
Making the Change
A successful lawn conversion depends on climate, terrain and of course individual taste. Of the four main no-mow strategies, Osann said, native or naturalized landscaping is likely your best option. It's adaptable to any part of the country and offers gardeners an infinite range of design possibilities. If you want to join the no-mow movement, here are some pointers to get you started:
- Get expert advice. Begin by talking with a landscaper who has experience with lawn conversions or even a neighbor who has naturalized all or part of his yard. A landscaper can help remove existing grass and recommend native plants to use in its place. Depending on water and weather, a low-growing turf lawn will "green up" about two weeks after seeding. Another alternative is a wildflower garden grown from seed. (Just make sure you choose a wildflower mix that fits your climate and weed out existing vegetation that would compete for moisture and sun). After the seeds germinate and the flowers bloom (in 6 to 12 weeks), they don't require watering unless there's a prolonged drought.
- Do your weeding. Invasive plants like ragweed, thistle and burdock can crowd out their native neighbors and may run afoul of local ordinances (as noted below). For most no-mow advocates, the payoff in natural beauty and habitat are well worth the effort.
- Check for incentives. Not surprisingly, western states such as Arizona and California, which have been in the throes of extreme drought for more than four years, have taken the lead in spurring homeowners to do lawn conversions. California, in fact, launched a turf replacement initiative that offers rebates of up to $500 per yard for homeowners who convert turf lawns to native, drought-resistant xeriscaping. On a more grass-roots level, organizations like the Surfriders Foundation, a national environmental group made up of surfing aficionados, have helped transform turf lawns in Southern California parks and homes into ocean-friendly gardens, using succulents and other indigenous plants along with hardscape materials like rocks and gravel that increase filtration, conserve water and reduce runoff.
- Check the rule books. The no-mow movement may sound idyllic, but some practitioners have faced a surprising stumbling block: the law. In one example, Sarah Baker, a homeowner and scion of a family of horticulturalists in St. Albans Township, Ohio, decided to let her turf grass yard grow wild. Last year, she was forced to mow when authorities from her township deemed her garden, which had become a naturalized but well-tended landscape, a nuisance. Sandra Christos of Stone Harbor, New Jersey, said that after she replaced turf grass with native plants, she was delighted that cormorants, night herons and kingfishers made themselves at home alongside "every kind of butterfly you can imagine." But since receiving a letter from the town clerk, Christos has had to tame the mallow, bayberry, clethra and rosa rugosa along her walkway—or pay a fine.
Sarah Baker in her yard.Amanda Mae Taylor
While local ordinances or homeowner association bans have emerged―mostly out of concern over fire safety, rodent control and noxious weeds―they take on aesthetic concerns too, often proscribing grass over eight inches tall, vegetable gardens (especially in planned communities) or any kind of landscaping that deviates from clipped turf.
A recent white paper by students from Yale's forestry and law schools, in collaboration with the Natural Resources Defense Council, surveyed legal obstacles to various forms of no-mow and concluded that, for sustainable landscaping to achieve wider adoption, some municipalities will need to adjust their policies.
That change can happen if residents push for it. Montgomery County, Maryland, for example, amended its nuisance laws to allow for naturalized lawns after locals made the case that their wild gardens improved air and soil quality and reduced stormwater runoff.
Moving away from water-guzzling and chemical-hungry lawns and cultivating yards that are diverse and self-regulating is a matter of mounting urgency worthy of that kind of community organizing. As global temperatures rise and droughts drag on, the demands of turf grass are likely to become untenable.
"Our existing lawns are going to get thirstier and their water requirements will increase," Osann said.
Fortunately, with an evolving toolkit of sustainable landscaping strategies, home gardeners can avoid such effects and help nurture the health of the planet—right in their own backyards.
EcoWatch Daily Newsletter
If you live in a high precipitation area, perhaps you’ve installed a lovely rain garden. But what’s a good landscaping choice for no rain at all?
While we have no choice but to wait for rainfall whenever it comes, how we respond to this crisis is up to us—for example, investments in water efficiency. What is a sound option for our lawns and yards?
A lush garden that conserves water? Photo credit: Planet Natural
Xeriscaping is a landscaping technique that conserves water. The word is a combination of xeros, the Greek word for dry, and scape, meaning scene. While dry landscaping may sound unappealing to some, xeriscapes are not just dusty rocks and thorny cacti, but a combination of elements in a landscape that are locally appropriate and water conserving. Watch this video from GreenCO to see why it’s not a garden but a system—and one that can be colorful and lush.
Xeriscapes exist in nearly all states and can reduce water used for landscaping by 60 percent.
To visualize how much water can be saved, check out this graphic presented by the city of Albuquerue, NM.
The landscaping system is based on the following 7 principles:
Planning and design
When designing your landscape for water-efficiency, be sure to choose plants that are defined as low water use or drought tolerant for your area. To search for native plants for your xeriscaping needs, visit the U.S. Environmental Protection Agency’s WaterSense database, searchable by state, to find lists for your area.
Once you have selected your natives, follow these 10 steps for a healthy xeric plant:
Select the right plant for the right spot
Dig the right size hole
Amend the soil
Carefully remove plant from container
Separate matted roots
Place plant and backfill the hole
Give the plant a good soaking
Use efficient irrigation
Maintain your xeriscape
Have you tried xeriscaping in your yard?
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