Martyn Lawrence Bullard and Timothy Whealon, featured lecturers at the Chicago Botanic Garden’s Antiques, Garden & Design Show, are two celebrated interior designers with their own sensibilities and styles.
Bullard, who has designed for celebrities like Tommy Hilfiger and Cher, likes to create sophisticated and eclectic interiors. Whealon, who studied English literature and art history and trained at Sotheby’s, focuses on fine and decorative arts and mixes classic and modern styles seamlessly.
They both strolled the exhibitor booths at the Show’s preview party to choose pieces that caught their eye, and would feel right at home among their personal aesthetic. See these picks and more at the Antiques, Garden & Design Show, through Sunday, April 17, and stroll through the Garden grounds to enjoy the spring blooms.
Martyn Lawrence Bullard’s Picks: (Click on an image for information about the item and vendor.)
Timothy Whealon’s Picks: (Click on an image for information about the item and vendor.)
When the Green Roof Garden was first planted in 2009, everything we knew about long-term rooftop gardening was theoretical. Which plants would live more than one year on the roof? No one knew for sure. Were native plants better to plant than non-natives? Unknown. What about soil depth, extreme weather, pests, diseases? The list of questions was long.
Today, after five years of watching, waiting, documenting, and evaluating, we now have actual data to guide us—and others—on the ever-more-popular topic of green roofs! I’ve just published the Plant Evaluation Notes from our research—the first national plant evaluation study of its kind.
I was blown away by the survival rates among plants, and by the fact that so many of them thrived and even excelled in such a challenging landscape. Of the more than 40,000 plants that we installed on both roofs, 30,568 of them were still alive in 2014. Just 14% of the 216 taxa died—that’s a pretty good success rate when you consider rooftop conditions. In fact, adaptability was one of the main criteria that we evaluated each plant on. Here’s the five-point list:
Adaptability (to hot/cold, dry, windy conditions, plus shallow soils)
Other surprises? Definitely the wild white indigo (Baptisia alba var. alba). Although I didn’t expect it to fail, I also didn’t expect it to be as large and vigorous as it has become. By year five, it was nearly three feet tall, with dramatic spires of white flowers. Meadow blazing star (Liatris ligulistylis) was in the same elegant category. But the absolute standout was prairie dropseed (Sporobolus heterolepis). It looked good all year, at all soil depths, and the fragrant flowers made the roof smell like popcorn in August and September.
It also surprised me that some of the drought-tolerant plants like sulfur flower (Eriogonum umbellatum), tufted fleabane (Erigeron caespitosa), and long-petaled lewisia (Lewisia longipetala ‘Little Plum’) didn’t do better on the green roof. Same goes for sundial lupine (Lupinus perennis). In a broader sense, I’m disappointed that we haven’t had greater success with plants in the shallowest, 4-inch soil depth. It’s the most challenging area on the green roof, so we’ll strive to add more types of plants to this trial area in the coming years.
Top 10 Performers on the Green Roof
Pussytoes (Antennaria dioica)
Dwarf calamint (Calamintha nepeta ssp. nepeta)
Juniper ‘Viridis’ (Juniperus chinensis var. sargentii ‘Viridis’)
The 69 other plants that got four-star ratings (good)!
What else is coming to the Green Roof Garden?
We’ll bring in a new set of plants (both native and non-native) to be evaluated and increase the replication of trials in 4-, 6- and 8-inch soil depths. Our goal is to compile a broad list of proven plants so that anyone—businesses, architects, governmental groups, and residential homeowners—has the information they need to grow a green roof. The sky’s the limit!
Visit the Green Roof Garden at the Daniel F. and Ada L. Rice Plant Conservation Center—open ‘til 9 p.m. all summer. The garden has two halves: the Ellis Goodman Family Foundation Green Roof Garden South and the Josephine P. & John J. Louis Foundation Green Roof Garden North.