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When the guide gets it wrong
Rosa setigera is a native climbing rose whose simple flowers allow bees to easily collect pollen. Dee Salomon
After moving to West Cornwall in 2012, we were given a thoughtful housewarming gift: the 1997 edition of “Dirr’s Hardy Trees and Shrubs.” We were told the encyclopedic volume was the definitive gardener’s reference guide — a fact I already knew, having purchased one several months earlier at the recommendation of a gardener I admire.
At the time, we were in the thick of winter invasive removal, and I enjoyed reading and dreaming about the trees and shrubs I could plant to fill in the bare spots where the bittersweet, barberry, multiflora rose and other invasive plants had been.Years later, I purchased the 2011 edition, updated and inclusive of plants for warm climates.
On the cover of the new edition, a quote from Adrian Higgins of The Washington Post boasts, “Michael Dirr is the oracle of ornamental horticulture. I trust his judgements implicitly.” I heartily disagree with Mr. Higgins: I blame this book — and my poor use of it — for some of my worst tree and shrub choices.
