Ellen Landscape's Eco-garden€� grabbed attention at the renowned Chelsea Flower Show this May in London.

The Irish landscape architect Elma Fenton created a wildflower meadowland and a topiary home for wildlife. Old apple trees lent the garden a mature feel while the sculpted landforms mimicked a natural landscape.

The most unique feature, however, was a natural swimming pond, bordered by plants that organically filtered the water-removing the need for chemicals.

Fenton explained the appeal to the British garden web site www.gardenforum.co.uk. "The beauty of this garden is its diversity,� she said. A body of water organically filtered, a sculptured landform creating garden microclimates for work, play, relaxation, sustenance and physical connection."

The 'Moat and Castle' garden was a collaboration between landscape architect and garden designer Fenton and landscape architect Neil Malachy Black.

Close to 5,000 natural pools already exist on the European mainland, many constructed by BioNova (Germany), BioTop (Austria) and BioTeich (Switzerland). The idea is new to the U.S., but a number of installers are building natural pools here, including  Expanding Horizons of Vista, Calif. and Kansas-based Total Habitat.

Expanding Horizons founder Bryan Morse says he's only built three swim ponds so far, including one in his own backyard. Naturally filtered swimming pools take close to twice the square footage of regular pools (for plant-driven filtration) and some legislative issues remain to be worked out, he explained.

“It's very complicated in the U.S.”' he told LandscapeOnline.com. “Because the (Environmental Protection Agency) won't accept that a natural swimming pool is safe without chemicals.”€�

In Germany, several large natural public swimming pools have operated without major problems for years, Morse said. The Vista, Calif. resident recently helped edit a book by British natural pool proponent Michael Littlewood that should be published by the end of the year. Total Habitat's Mick Hilleary is offering a guide to natural pool construction on the company's web site.

More information is available at Expanding Horizons' web site, expandinghorizons.biz and at Total Habitat's, http://totalhabitat.com

--Erik Skindrud

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