Earliest spring is red

by William (Ned) Friedman, Director of the Arnold Arboretum
March 30, 2019

Earliest spring is red

silver maple flower

Early spring flowering is well underway at the Arnold Arboretum. Of special note today, are those wind-pollinated species whose flowers are essentially reduced to little more than the structures that produce pollen or seeds (no need for showy petals to attract pollinators). Among temperate woody plants, these early spring wind-pollinated taxa typically have unisexual flowers, […]

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Wrap-up on spring flowering at the Arnold Arboretum

by William (Ned) Friedman, Director of the Arnold Arboretum
July 3, 2017

Wrap-up on spring flowering at the Arnold Arboretum

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With temperatures regularly in the high 80s and into the 90s (F), spring is officially over at the Arnold Arboretum.  This was my seventh spring at the Arboretum and nothing in the past six years comes close.  Consistent cool and wet weather combined to allow almost every species to leaf out, flower and/or cone with […]

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Family reunion of tulip trees

by William (Ned) Friedman, Director of the Arnold Arboretum
June 10, 2017

Family reunion of tulip trees

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Imagine not seeing your closest living relative for ten or fifteen million (yes million) years. And on top of that, you and your closest living relative end up on different continents. So much time, so much opportunity for evolutionary divergence. The two extant species of tulip trees, Liriodendron tulipifera (eastern North America) and Liriodendron chinense (eastern and central […]

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Dove tree takes wing

by William (Ned) Friedman, Director of the Arnold Arboretum
May 22, 2017

Dove tree takes wing

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“To my mind Davidia involucrata [the dove tree] is at once the most interesting and beautiful of all trees of the north-temperate flora.” Coming from Ernest Henry Wilson, the intrepid early twentieth century plant explorer for the Arnold Arboretum (and Veitch Nurseries before that), that is some mighty high praise! Right now, our magnificent 1904 (5159*A) […]

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Focus on Phenology: Founder’s Fancies

by Danny Schissler, Project Coordinator
May 12, 2017

Focus on Phenology: Founder’s Fancies

Ribes aureum (Golden Currant)

Phenology–the study of the seasonal rhythm of plants and animals–is a science with deep roots in cultural practices throughout human history. Modern research examines trends in phenological data to help us understand our changing climate, but observation of the timing of biological events has long served social and economic purposes outside the realm of scientific […]

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13 reasons to visit the Arnold Arboretum today (or very very soon)

by William (Ned) Friedman, Director of the Arnold Arboretum
May 8, 2017

13 reasons to visit the Arnold Arboretum today (or very very soon)

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Rays of sunshine will appear. Mountain witch alder is in peak flower and extremely fragrant (Fothergilla major 23195*A). Note, these flowers lack petals – you are mostly looking at pollen-producing stamens. Young catalpa leaves are still deep red and emerging from their winter buds (Catalpa fargesii 394-2009*B). Nikko fir pollen cones are yellow – tap […]

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Petal-less flowers at the Arnold Arboretum

by William (Ned) Friedman, Director of the Arnold Arboretum
April 18, 2017

Petal-less flowers at the Arnold Arboretum

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The beginning of spring flowering has fully launched at the Arnold Arboretum. And this is the perfect weekend to stroll through the collections and see what is on offer. While most of the show revolves around the myriad forms and colors of petals, step off the main path and have a look at a few […]

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Hamamelis intermedia, Arnold Promise, 1991

by Larissa Glasser, Library Assistant
April 6, 2017

Hamamelis intermedia, Arnold Promise, 1991

Hamamelis intermedia, Arnold Promise, 1991

Hamamelis intermedia, Arnold Promise, 1991 Photograph by István Racz and Zsolt Debreczy (n.d.), Hungary Arnold Arboretum, Jamaica Plain, Massachusetts, United States March 17, 1991 István Racz and Zsolt Debreczy are world-renowned denrologists with a long and storied association with Arnold Arboretum. They are authors of Conifers around the world : conifers of the temperate zones […]

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Superbloom in the desert

by William (Ned) Friedman, Director of the Arnold Arboretum
March 21, 2017

Ponds, spring, Rehder Pond, 1904

by Larissa Glasser, Library Assistant
March 9, 2017

Ponds, spring, Rehder Pond, 1904

Ponds, spring, Rehder Pond, 1904

Ponds, spring, Rehder Pond, 1904 Title: Fothergilla and Japanese Witchhazel (Hamamelis japonica) next to Rehder Pond Photograph by Thomas E. Marr (active ca.1890-1910, American) Rehder Pond, Arnold Arboretum, Jamaica Plain, Massachusetts, United States May 21, 1904 A larger version of this image is available in HOLLIS, the online catalog of Harvard Library. Thomas E. Marr […]

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