National Post story: "City Hall awash in a sea of green"
There was a story in the National Post today on the new green roof going on the podium at Toronto City Hall -- see below for the text and a link to the story.
I just wish there were some pics to go with it. Does anybody have any shots of the project as it's developing?
- J.
**
City Hall awash in a sea of green
$2.3-million project reclaims public space
The sharp winds of October, with Thanksgiving behind us and Halloween coming on strong, are for most people a time to start ripping out the garden, and turning it over for winter.
Not so the City of Toronto. For the past several weeks, a crane has been busy lifting flat upon flat of plants off the titanic trailers of transport trucks parked at the back door of City Hall. Walking in that way on a regular basis, under a scaffolding erected to prevent them dropping perennials on passersby, I became amazed by the sheer quantity of plants heading to the roof. Yesterday I finally got a tour of what's going on up there.
Toronto's largest green roof is under construction, and the scale of the project takes the breath away.
We walk up the easternmost of the two ramps that slope upward on either side of the main doors to City Hall. At the top spreads a vast area of black asphalt, where workers are busy laying tubes for electric wire and pipes for irrigation. This second level, which architect Vilgo Revell intended as a public space, has been off-limits for many years. We walk toward the east tower, and suddenly a prairie meadow spreads out in front of us: Several football fields worth of grasses, flowers and herbs.
Chris Pommer, a partner at PLANT Architects, and Terry McGlade of Gardens in the Sky (now a division of Flynn Canada, the flat-roofing giant) are leading this tour, bubbling over in their excitement for their new gardening project. Mr. McGlade stops at intervals to tear off bits of herb leaves -- bergamot and campion and Russian sage -- for me to smell and taste. Even the sun makes a brief appearance.
"The grasses are going to get up to 2½ feet high, with one-foot plumes above them," enthuses Mr. McGlade, pointing to calamagrostis. Common here are sedums, an alpine plant common on green roofs. He shows me New England asters (purple flowers) and gaillardia (orange flowers). "All these plants are self-seeders. They will move and intermix into this planting."
"We were thinking about it in painterly terms," continues Mr. Pommer. "Initially this will be stripes, but as it grows it will become very kind of Fauvist," a reference to an art movement from about a century ago whose painters, including Henri Matisse, were known for their use of simplified forms and bright or violent colours.
All these plants are hardy enough to survive to -20C, he says, noting, "the Russian sage can survive Siberian temperatures."
In May, city council approved a new bylaw mandating rooftop vegetation on all new high-rise condos and offices with a floor surface greater than 2,000 square metres, mid-rise residential buildings above eight storeys, industrial plants, schools and non-profit housing. This $2.3-million green roof, which at 3,400 square metres is the largest in Toronto, is part of a $42.7-million plan to redo Nathan Phillips Square, set for completion in 2012.
New techniques make green roofs easier to install. When Chicago City Hall got a green roof five years ago, gardeners planted the roof by hand. Lifting flats of plants -- even 52,000 flats -- here is much more efficient. Each flat, which holds 20 plants, is 1-foot by 2-feet. They began life, some up to a year ago, at Hillen Nurseries Inc. near London, Ont. The same company grew the plants for a 1,000 square-metre green roof on the Eglinton West subway station, which opened in August.
That roof is off-limits to the public. This roof, in contrast, will become a new park for Toronto, with pathways, benches, tables and chairs, plus a public event space shaded by three rooftop Kentucky coffee trees. After more than a decade as an off-limits wasteland, this will be a destination.
As I stood yesterday watching workers place the plant trays, I marvelled at the vista: the sea of green, then the curved corrugated cement and marble wall of the City Hall tower, and the blue sky alongside. Participants in the CitiesAlive World Green Roof Infrastructure congress will view the green roof at its grand opening, 5 p. m. on Monday. It is not a small achievement.
pkuitenbrouwer@nationalpost.com
http://www.nationalpost.com/news/canada/toronto/story.html?id=2098371