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      Arboretum

      PEM’s varied campuses have recently been designated as a Level 1 Arboretum by The ArbNet Arboretum Accreditation Program and the Morton Arboretum.

      ArbNet is an international network of arboreta and tree care professionals that aims to share research and best practices with the goals of advancing conservation and welcoming more visitors into green spaces.

      Read our Q&A with the PEM Garden and Grounds team about this exciting achievement.

      Meet our trees!

      Find the trees on our campus marked with QR codes to learn more about our living collection.

      European Copper Beech

      Fagus sylvatica

      PEM’s copper beech is visible as a ten-year-old sapling in a photograph taken in the Ropes Mansion Garden in 1913, making this tree at least 120 years old. This beech was recently treated for a fungal infection, which remains under control.

      European Linden

      Tilia vulgaris

      This tree was included on the plant list for the original garden designed by botanist John Robinson in 1913. A picture taken in 1915-1916 shows a tree approximately the height of the Ropes Mansion roof in this same spot, putting the age of this linden tree at somewhere around 150 years.

      Dwarf Bottlebrush Buckeye

      Aesculus parviflora

      This tree is on the original list of plantings compiled by botanist John Robinson in 1913. This dwarf buckeye is a relatively rare form of this shrub known for its feathery, fragrant blooms.

      Dawn Redwood

      Metasequoia glyptostroboides

      One of the world’s few deciduous conifers, dawn redwoods are so highly prized that they are under strict legal protection in China and may soon be extinct in the wild except for mature specimens. These trees are a popular planting in arboreta and botanical gardens across the world.

      Ginkgo

      Ginkgo biloba

      Ginkgo trees are one of the oldest tree species on Earth, and have been cultivated in Japan, China and Korea for centuries. They were thought to be extinct in the wild until plant collector Frank Meyer rediscovered a grove in Southeastern China in 1915. Female ginkgos produce a strong-smelling fruit that can be eaten when properly cooked.

      Princeton Elm

      Ulmus americana

      This variety is nicknamed the “future of elms” for its resistance to Dutch elm disease, the highly invasive fungus that has killed off many other American elm trees.

      Sourwood

      Oxydendrum arboreum

      Sourwoods are native to North America, found from southwest Pennsylvania to northwest Florida and as far west as Illinois. Various Native American communities have used it as a laxative (leaves) and in jellies (blooms).

      Grapes

      Vitis vinifera

      PEM’s ​​heritage grape varieties include Salem, Goethe, Lindsey, Massasoit, Baco Blanc, Cascade and Diana. The vines were introduced to the museum in 2022 by J. Stephen Casscles, author of Grapes of the Hudson Valley.

      Witch Hazel

      Hamamelis virginiana

      Witch hazel may have gotten its name from the Old English word wych, meaning pliant or flexible. This plant is a natural astringent, used to treat skin irritations, and can also be brewed into tea.

      Golden Rain Tree

      Koelreuteria paniculata

      Native to China and Korea, the Golden Rain Tree is valued as an ornamental planting for its attractive leaves, flowers and seeds. PEM planted a golden rain tree inside Yin Yu Tang: A Chinese Home.

      Katsura

      Cercidiphyllum japonicum

      When dried, this Japanese tree smells like cotton candy or burnt sugar. This smell gave katsura trees the German name “kuchenbaum,” or “cake tree.”

      Historic Houses

      Did you know PEM’s collection of buildings spans five centuries?

      Gardens

      Explore our green spaces around the museum and downtown Salem.