Dr. Dirr’s Spotlight: Acer Pseudosieboldianum – Korean Maple
Certainly, easy to become monochromatic about small maples when Acer palmatum and the numerous cultivars are readily available via garden centers and mail order sources.
Read MoreDr. Dirr’s Tree Spotlight: Quercus Lyrata-Overcup Oak
The overcup oak, Quercus lyrata, languished in landscape obscurity until the 1990s when several Georgia nurserymen realized and developed its potential. The University of Georgia
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Dr. Dirr Tree Spotlight: Magnolia x soulangeana- saucer magnolia
The hope of spring is tethered to this species and the many cultivars. Difficult to imagine a garden, park, campus, golf course, city street, commercial
Read MoreDr. Dirr’s Tree Spotlight: Liriodendron tulipifera (Tuliptree)
From the arborists’ point of view, the tuliptree has more than its share of liabilities including excessively fast growth, limb breakage, drought-induced premature leaf abscission,
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Dr. Dirr’s Tree Spotlight: Acer triflorum – Three-flower Maple
A beautiful maple, resoundingly/photogenically magnificent in shades of orange and red in autumn. Colors long persistent, from initiation to the crescendo, easily 3 to 4
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Dr. Dirr Tree Spotlight: Thuja occidentalis-Eastern Arborvitae
Dr. Dirr’s thoughts on the Eastern Arborvitae: Not quite sure why I never fully respected this soft-textured needle evergreen but an epiphany occurred during a
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Styrax japonicus-Japanese snowbell
Beyond redbuds, Cercis, dogwoods, Cornus, flowering crabapples, Malus, and magnolias, Magnolia, there are precious few genera which offer significant cultivar diversity. Within eastern redbud, ~35
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Dr. Dirr Tree Spotlight: Catalpa speciosa, northern or western catalpa, down but not out
Catalpa speciosa has never been commonly utilized in cultivated landscapes, yet somehow occurs in off-the-grid locations from Maine to Florida to the west coast. The
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Trees and College Campuses: A Mutual Symbiosis
A December, 2017 visit to Amherst, MA to enjoy a Georgia-University of Massachusetts (UMass) basketball game brought back fond memories of my graduate student days
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Dr. Dirr’s Tree Spotlight: Quercus shumardii – Shumard Oak
Shumard oak is one of the most widely distributed species of the red oak group ranging from Ontario (4 counties) to Florida, west to Kansas,
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