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posted: 7/27/2014 1:01 AM

Brave new gardening for brave new climates

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  • Ann Savageau's sustainable drought-tolerant garden has baby plants that have not fully grown in yet in Davis, Calif. As many parts of the country struggle with drought, heavy downpours and rising water bills, the move toward sustainable gardening is picking up steam, experts say.

      Ann Savageau's sustainable drought-tolerant garden has baby plants that have not fully grown in yet in Davis, Calif. As many parts of the country struggle with drought, heavy downpours and rising water bills, the move toward sustainable gardening is picking up steam, experts say.
    AP Photo/Ann Savageau

  • Dwarf crested irises in the New York Botanical Garden in Bronx, New York, are cultivars of native species. They use less water and fertilizers and are more resistant to challenging weather than traditional green lawns. As many parts of the country struggle with drought, heavy downpours and rising water bills, the move toward sustainable gardening is picking up steam, experts say.

      Dwarf crested irises in the New York Botanical Garden in Bronx, New York, are cultivars of native species. They use less water and fertilizers and are more resistant to challenging weather than traditional green lawns. As many parts of the country struggle with drought, heavy downpours and rising water bills, the move toward sustainable gardening is picking up steam, experts say.
    AP Photo/Katherine Roth

  • Savageau shows the front lawn grass of her home before she and her husband, Michael Savageau, decided to create a sustainable drought-tolerant garden in its place in Davis, Calif.

      Savageau shows the front lawn grass of her home before she and her husband, Michael Savageau, decided to create a sustainable drought-tolerant garden in its place in Davis, Calif.
    AP Photo/Ann Savageau

  • Ann Savageau's sustainable drought-tolerant garden includes cattail, sedge and rush in the foreground; and fescue, salvia and penstemon in the background.

      Ann Savageau's sustainable drought-tolerant garden includes cattail, sedge and rush in the foreground; and fescue, salvia and penstemon in the background.
    AP Photo/Ann Savageau

  • Ann Savageau, a design professor at the University of California at Davis, installed a new landscape consisting of a variety of cacti and agaves, fescues, sages, and grasses that have not fully grown in yet. Above, right, the home in Davis, Calif., used to have a typical Kentucky bluegrass lawn that required a lot of watering, fertilizer and herbicides.

      Ann Savageau, a design professor at the University of California at Davis, installed a new landscape consisting of a variety of cacti and agaves, fescues, sages, and grasses that have not fully grown in yet. Above, right, the home in Davis, Calif., used to have a typical Kentucky bluegrass lawn that required a lot of watering, fertilizer and herbicides.
    AP Photos/Michael Savageau

  • This is the backyard of the Savageau's home before remodeling of the landscape.

      This is the backyard of the Savageau's home before remodeling of the landscape.
    AP Photo/Ann Savageau

 
By Katherine Roth
Associated Press

Ripping out the front lawn and its bordering rhododendrons and replacing them with a landscape of native grasses, ground covers, succulents and rocks once seemed an unfathomable act of defiance. No longer.

As many parts of the United States grapple with drought and rising water bills, "The thought of an English garden in the Central Valley of California is sheer madness. It wasn't meant to be, and it's sucking up precious groundwater we need for agriculture," said Ann Savageau, a design professor at the University of California at Davis, who recently traded in her lush green lawns for a desert look.

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Instead of scoffing, neighbors stopped to ask her landscaper for his business card. Other California towns, including Sacramento and Menlo Park, have begun offering rebates to homeowners who remove their lawns.

Gardeners nationwide are feeling the effects of climate change. In the East, and other areas where heavy downpours have become more intense, a sustainable garden might include native grasses and other plants that do well in heavy rain and the dry weather that can follow.

"Awareness is changing in a way that is here to stay," said Brian Sullivan, a vice president for landscapes at The New York Botanical Garden. "Yard by yard, region by region, the overall environmental impact of this trend, which I think is very positive, is substantial."

Mowing and watering a traditional lawn requires a lot of time, money, water and fertilizers. Increasingly, many home gardeners want to focus instead on edible gardens, and rethink the rest of their landscaping in a more environmentally sustainable and low-maintenance way.

It's sometimes hard to know where to begin, however, and few people have the funds or time to tackle a total garden makeover all at once. Some strategies:

Take it in steps

"Transitions should be made at your own pace and you do these things in small steps," Sullivan said. "Lawn has utility. We play on it, sing on it and look at it. You can still enjoy your lawn, but cut it down by a third or half, or go with ground covers you can walk on. They're not the same, but it's about shifting expectations."

Susan Middlefield, horticulture editor for the Vermont-based National Gardening Association, said "less lawn means you're putting less carbon into the atmosphere. Lawns are fertilizer hogs, and a lot of fertilizer also contributes to oxygen depletion in local waterways."

Savageau retained a small circle of lush lawn about 12 feet across for her grandson to play on. It's surrounded by agave and desert grasses.

Consider your site

When taking your yard in a new direction, experts say, the first step is to know your site. Do you have a slope? Is it shady or sunny? Plants on the top of an incline will be drier and plants at the bottom will be wetter. But when the water dries up, the plants at the bottom need to be fine when it's dry, too.

Talk to local experts

Many arboretums, botanical gardens, native plant societies and extension services offer brochures, online help, and classes on suitable plants and landscapes for various climates and regions. Many also maintain native plant gardens to inspire home gardeners, and some communities offer incentives to homeowners making the shift toward more sustainable yards.

Melanie Sifton, vice president of horticulture and facilities at the Brooklyn Botanic Garden, in New York City, suggests that homeowners start with Landscapeforlife.org, an interdisciplinary effort toward sustainable gardens led by the American Society of Landscape Architects, the Lady Bird Johnson Wildflower Center at the University of Texas in Austin, and the United States Botanic Garden.

Opt for rain garden

Rain gardens are "a great idea for any part of the country. ... You take out a small area of lawn and make a depression into which you direct the rainwater coming off your roof. Instead of rainwater running down the driveway and overwhelming sewers, it goes into an area planted with occasionally heavy downpours in mind," explained Middlefield.

In Vermont, she said, rain gardens often include summersweet, inkberry, shrubby dogwoods and purple coneflower.

"When there's a big thunderstorm, you know all that water will be going somewhere useful," she said.

The Brooklyn Botanic Garden's rain gardens, planted with blue star, switch grass and black gum trees, have been successful and provide stunning fall color, she said.

Think sustainable

"In areas with sufficient water, I'm not anti-lawn," Sif- ton said. "Just be aware of water use, use organic fertilizers and aerate the soil a lot."

Sustainable lawn varieties being used successfully in New York City include tall fescues mixed with Kentucky bluegrass, she said.

Compost

"Composting yard waste and putting out a bucket for rainwater are huge in their environmental impact, and are both very easy ways to start gardening more sustainably," Sifton added.

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