Posts Tagged ‘Lady Bird Johnson Wildflower Center’

Are All Green Roofs Created Equal?

Thursday, December 24th, 2009

The following was published as part of my regular “Growing Greener” column in Public Garden magazine, Vol. 24 No. 3 (2009). Public Garden is the flagship publication of the American Public Gardens Association. In “Growing Greener” I answer sustainability-related questions from public garden staff.

Q: There are so many different green roof systems. Are they all effective?

A: It’s easy for us plant enthusiasts to be seduced by the idea of verdant rooftops. Aesthetically, living roofs are a major improvement over typical asphalt or tar roofs, which are about as hospitable to humans and most other life forms as Death Valley on a mid-summer day. But before falling head over heels for green roofs it’s worth asking whether they really, as touted, help insulate buildings and thus save energy that would otherwise be consumed for heating or cooling, counteract the urban heat island effect, remove particulates from polluted air, detain and cleanse storm water, and more. (more…)

Public Garden Trend Alert—Virtual Flower Fixes

Friday, March 13th, 2009

As spring sweeps across the country, some public gardens are capturing the spectacle of blooms online. Anyone in need of a bluebonnet fix can check out the Lady Bird Johnson Wildflower Center’s Bluebonnet Cam, updated hourly. It’s too early to tell whether anyone will top Brooklyn Botanic Garden’s 2008 tour de force, a time-lapse video of 3,000 photos of its famous cherry tree collection—from the early buds to peak bloom—complete with original music.