NO, POISON IVY was not put on the planet to punish mankind, or to boost antihistamine sales. As with every native plant—and yes, Toxicodendron radicans is an American native—it has an important role in the bigger scheme, supporting wildlife and providing erosion control. With help from Dr. Susan Pell of the United States Botanic Garden, we’ll get a much closer look at it from a very safe distance, and hopefully learn to manage around poison ivy better, but also to give it the respect it deserves.
Susan is intimately familiar with poison ivy and its relatives, because she has for years studied them right down to the molecular level. She is Science and Public Programs Manager at the historic United States Botanic Garden in Washington, D.C., a fellow of the National Science Foundation, and former Director of Science at Brooklyn Botanic Garden.
But I invited Susan to my public-radio show and podcast in this reprise episode for another reason that she states on her LinkedIn profile, alongside all those impressive scientific credentials: because, she says, she loves to show people “the coolness of plants.”
So keep an open mind, gardeners, as we explore the “cool” of poison ivy—and of course practical, more obvious matters like what to do to avoid that damn rash. Read along as you listen to the June 22, 2015 edition of my public-radio show and podcast using the player below. You can subscribe to all future editions on iTunes or Stitcher or Spotify(and browse my archive of podcasts here).
read/listen: my poison-ivy q&a with dr. susan pell
Q. Your area of research concentration has been the cashew family [or Anacardiaceae], Susan, correct?
A. I study the evolution and diversity of the cashew family, which includes poison ivy among its
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Ants. Love them or hate them, it is undeniable that they are amazing creatures. With large, complex societies, fungus-farming techniques and an empire which almost spans the entire globe, it is a blessing that they are so small and have not yet developed an overwhelming collective intelligence.
The solitary mason bee is a North American native pollinator that deserves more attention and respect. Honeybees do a lot of pollinating, but they are not native, their populations are in decline, and they are not as efficient at pollinating as some other species, including mason bees. Learn more about this humble bee and how to support it in your garden.
I was picking the Czar plums to make more jam when a wasp was disturbed from eating it’s lunch. Wasps go for my plums just as they are at their sweetest best. My problem was I couldn’t see which plums had a wasp in the fruit if they were above head height or facing away from my hand. The resulting sting set me on the trail of other stingers in the garden.
For over 25 years I have gardened a rockery or rock garden on a triangular patch of poor soil. I progressively scrounged and collected a range of granite, limestone and sandstone rocks and added them piecemeal. I aspired to growing alpine plants and recognised good drainage and shelter from winter wet weather would be key but that is as far as my planning would go. For the first couple of decades I was busy at work and wasn’t able to put in the effort of looking after small but hardy alpines.
A few years ago a friend, who was a native Alaskan, gave us a seed packet of alpine forget-me-nots (Myosotis alpestris) that she purchased on a visit back to her home state. We really didn’t think that a plant that flourishes in such a northerly region of the US would tolerate the heat and drought of South Carolina. However, we were pleasantly surprised!
I KNOW THERE ARE TIMES WHEN THE LURE of the garden pulls me outdoors before I change out of my PJs, before I brush my hair, without washing my face. It’s that powerful and seductive a force, indeed, especially with the lawn greening up right now, all verdant and provocative. But I have to say, my dear Andre Jordan, I try to make certain I have my trousers on. Do I sense a pattern in your doodles, a theme of how alcohol figures into horticulture in The Garden According to Andre (and no, I don’t mean for sterilizing pruners):
You can order the plan, a pdf, from Wave Hill’s shop. My pairs were adapted from there–made in cedar, not pine; the arms slightly longer; the wood slightly thicker and so on–and a savvy carpenter can adjust the angle of the seat and back before screwing everything together, to be more upright or less so. Follow the plans to the letter…or have some fun with them. Order the Wave Hill chair plan by calling the Wave Hill Shop at 718.549.3200 x 249, or email jenahb at wavehill dot org.Want them painted? My expert woodworking neighbor recommends using Benjamin Moore Aura exterior on top of an oil-based primer to help stop any tannin bleed (assuming that the material is cedar, which is the best choice if you plant for long life of the chairs, or to leave them outdoors in winter). If there are knots, use oil-based Binz primer on the knots only.You may recall my recent interview
NO SURPRISE here, but sort of a brutal reminder: The Great American Lawn in its most traditional sense (loaded with anything-but-green additives such as pesticides) is no place for your children. Early life exposure is linked to “pediatric cancers, decreased cognitive function, and behavioral problems.” So warns the American Academy of Pediatrics in a new report. SafeLawns.org, as ever, distills the takeaways. Make this the year you give up the weed and feed for good, please.christmas bird countTHE 113th annual Audubon Christmas Bird Count begins December 14, running through January 5. Sign up to help here by counting birds at feeders, or along with a nearby group out in the field (search by zip code for contact information for local groups to accompany at this link). Participation is free; no registration fee.the diversity in one cubic footI HAVE A fascination with the intercon
Bill Logan and I talked about how mankind learned to use trees and evolved alongside them with their help; about pruning tactics like pollarding and coppicing; and also how nearly immortal trees are.Read along as you listen to the May 20, 2019 edition of my public-radio show and podcast using the player below. You can subscribe to all future editions on iTunes or Spotify or Stitcher (and browse my archive of podcasts here).Plus: Enter to win the book, in the comments box at the very bottom of the page.our relationship with trees, with bill loganMargaret: Welcome, Bill. Is it O.K. if I say Bill since everyone we know