Sustainability Topics

Green Roof Destruction

Last month while inspecting the green roof, Gardener Lars Rasmussen noticed extensive damage to the plantings on the roof. It appeared as if someone had come along, pulled up the sedum, and began digging in the soil.

Upon closer inspection, a population of Phyllophaga spp. was discovered below the soil. photo credit: W. Costello

On a subsequent visit, gardeners startled crows digging in soil and pulling up the sedum. Upon closer inspection, it was realized they were feasting on a population of newly hatched grubs in the soil of the green roof. These c-shaped white grubss were Phyllophaga spp., …

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Mummies in the Wister Greenhouse-IPM at the Scott Arboretum

When I was young I asked Santa for a greenhouse. I secretly hoped for one in the Lord and Burnham style, the kind featured in the glossy British gardening magazines. Realistically I was willing to settle for one with polyethylene panels. I knew Santa had many lists to check off. What “Santa” brought was a custom-built cold frame, complete with a hinged glass door to allow for ventilation. I was thrilled! As plant enthusiasts, we often dream about a greenhouse and all the plants we can grow, display, and overwinter. The romantic ideal eventually wanes and reality sets in: greenhouses …

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Organic Lawn: One Year Later

Organic lawn in August 2011. photo credit: L. StiebitzRecently Nicole Selby, our gardener leading the organic lawn effort, interviewed with local garden reporter Virginia Smith of the Philadelphia Inquirer. Nicole discussed upon our philosophy, efforts, and challenges to date.


Organic lawn during the wet month of August. photo credit: L. Stiebitz

How is it working? The 2011 growing season has been extreme from hot and dry to wet and soaked. At the moment, though, the conventional and organic lawns all look the same – green.

Learn more about the organic lawn in these past posts.

Listening to the Organic Lawn

Announcing the Organic Lawn Brochure and Blossoming …

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