Dr. Michael Dirr discusses: Parrotia Persica – Persian Parrotia, Persian Ironwood

                 Parrotia persica-Persian Parrotia, Persian Ironwood                                                                                 Michael A. Dirr What a great small tree! Roaming the Georgia campus in early March, I notice specks

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Dr. Dirr Discusses: Aesculus pavia- Red Buckeye

The red buckeye is among the most beautiful eastern North American tree species, especially in flower, when the brilliant red panicles glow in the woodsy

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Dr. Michael Dirr’s latest findings: Chionanthus retusus- (Chinese fringe tree)

Chionanthus retusus– Chinese fringetree  Michael A. Dirr In 2018, I was asked to assist with our county’s (Oconee, Georgia) tree planting project for a new

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Dr. Michael Dirr’s Latest Findings: Magnolia Virginiana- Sweetbay Magnolia

In previous tree profiles, I discussed Magnolia acuminata and M. × soulangeana and herein highlight an increasingly important landscape species, M. viginiana. It is becoming

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Dr. 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

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Dr. 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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