/ Sustainability

Tree Index

Hope鈥檚 campus has over 2,000 trees representing approximately 100 different species. The structural value of these trees adds up to over $3.8 million, though the most valuable aspects of these trees are the ecosystem services they provide our community every year.

鈥淥ur trees are a treasured part of Hope 鈥 the Pine Grove in the center of campus, for example, has been a landmark for generations. We take our responsibility to be good stewards of them seriously, not only for ourselves but for the Holland community and for the future, and it鈥檚 a team effort.鈥
鈥擪ara Slater, director of operations

Highlighted below are some of the trees that help make our campus urban forest so special.

Japanese Zelkova

Zelkova serrulata 

Native Range: Eastern Asia

Zelkova trees are able to grow up to 80 feet tall and stand out because of their umbrella-shaped crown. This species has also been used to replace elm trees because of their resistance to Dutch elm disease. These specific trees were planted to replace a 164-year-old American Elm after straight-line winds brought it down in 2011. The fallen trees were repurposed for use as furniture and paneling in the Great Room and chapel of the Bultman Student Center.

River Birch

Betula nigra

Native Range: Eastern North America

This is a fast-growing, shade-intolerant tree species with a lifespan ranging from 50 to 150 years. They are characterized by strongly doubly-serrate leaves and thin gray or red bark that peels away to reveal salmon or light pinkish tan-colored inner bark.

Honey Locust

Gleditsia triacanthos

Native Range: Eastern North America

This medium to large-sized tree grows upwards of 60 to 85 feet high. It is a fast-growing, shade-intolerant tree with a lifespan of up to 120 years. This species is generally characterized by the large thorns that protrude from the bark of the tree, but the thorns are absent in the 鈥渋nermis鈥 (unarmed) form.

Ginkgo

Ginkgo biloba

Native Range: Eastern Asia

Ginkgo trees are known as 鈥渓iving fossils.鈥 They are one of Earth鈥檚 oldest living tree species (270 million years old) coming from an ancient order of plants that have characteristics of both conifers and ferns. Male ginkgo trees are planted more frequently than the female variety because female ginkgos produces large quantities of foul-smelling seeds. This species also produces a chemical that has been used as a memory-enhancing supplement. Salmon or light pinkish tan-colored inner bark.

American Sycamore

Platanus occidentalis

Native Range: Eastern North America

American Sycamore can grow as high as 75 to 100 feet tall. They have tan-grey or pale grey-green outer bark, which sheds in large flakes, revealing patches of white, smooth inner bark. The tree鈥檚 peeling bark helps to shed damaging pollutants. It is also a close relative of a tree species from Vietnam that has evergreen leaves and contains a cancer-treatment compound.

Douglas Fir

Pseudotsuga menziesii

Native Range: Eastern North America

This is an evergreen conifer (cone-producing) tree in the pine family that can grow up to 60 feet tall in an urban environment. Due to the thick bark of mature douglas fir trees, they are often able to survive forest fires with the only blackened bark. This species occurs naturally on the West Coast of the United States.

Weeping Cherry Tree

Prunus pendula

Native Range: Eastern Asia

This ornamental tree species grows between 15 to 25 feet tall. This species is best known for its luscious pinkish-white blossoms and drooping branches. The fruits produced by this tree are too small and sour for humans, but they are a valuable food source for many bird species.

Kentucky Coffeetree

Gymnocladus dioicus

Native Range: Eastern North America

A Kentucky Coffeetree can reach 60 to 75 feet tall at maturity. This unique tree is characterized by large leaves made up of many smaller leaflets. This species is a part of the legume family and has woody seed pods. The coffeetree gets its name because these seed pods were used as a coffee substitute by early colonial settlers. The closest relative of this tree lives in Southern China.

Northern Red Oak

Quercus rubra

Native Range: Eastern North America

This mildly shade-tolerant and relatively fast-growing tree species has the potential to grow up to 75 feet tall. The acorns of this tree are medium-brown colored and have thin, saucer-shaped caps. These acorns take approximately two years to fully mature. Native Americans used this oak tree for many medicinal purposes such as indigestion, chills and fevers, and sore throat.

White Oak

Quercus alba

Native Range: Eastern North America

These trees reach heights of 50 to 100 feet at maturity. Unlike the Red Oak, the leaves of white oak trees have round and blunt lobes and often stay attached to the tree throughout the winter months 鈥 even after they have died. The acorns of this tree are also less bitter than that of red oaks, making them a valuable source of nutrition for many animal species.

Striped Maple

Acer pensylvanicum

Native Range: Eastern North America

The Striped Maple is a small understory tree that can grow up to 30 feet high. This tree species is also known by many other names, Goosefoot, Goosefoot Maple, Pennsylvania Maple, Moosewood, and Snake-bark Maple, but it is the only species of snake-bark maple in North America. Young Striped Maples are known for their smooth green bark with pronounced vertical white striping.

Japanese Snowbell

Styrax japonicus

Native Range: Eastern Asia

Japanese Snowbells are small deciduous trees that can grow up to 30 feet tall and have rounded canopies with horizontal branching. This species has small white flowers that dangle from the tree鈥檚 branches like bells 鈥 hence, the name 鈥楽nowbell.鈥 The fruits of this tree are covered in dense, fine, star-shaped, hairs.

Japanese Pagoda Tree

Styphnolobium japonicum

Native Range: Eastern Asia

Despite its name, the Japanese Pagoda is native to China, Korea and Vietnam. When cultivated as an ornamental tree, this species typically grows between 25 and 35 feet tall. This plant is important in traditional medicine and has edible leaves and flowers. The pea-like flowers of a Pagoda Tree give way to long, unusual seed pods that look like a string of beads.

Lacebark Pine

Pinus bungeana

Native Range: Eastern Asia

A Lacebark Pine can reach heights up to 50 feet tall. This species is typically characterized by its exfoliating bark at maturity, setting this species apart from other pines. When the outer bark peels away, it reveals white, green, and purple inner bark 鈥 resembling camouflage. This feature is mostly visible during the winter. Lace Bark pine is one of the favorite evergreen trees planted in royal gardens in eastern Asia.

Witch Hazel

Hamamelis virginiana

Native Range: Eastern North America

Witch Hazel is largely cultivated as a large shrub or a small tree. This plant is typically used for many medicinal purposes and has been known as 鈥渘ature鈥檚 answer to Neosporin鈥 by many chemists and pharmacists. This plant blooms in late fall and is typically the last bit of color you see after the majority of trees have lost their leaves. Witch hazel is a late-blooming species. This means that it is not pollinated by bees or butterflies, it is pollinated by shivering moths. Close relatives of this species originate in central American and eastern Asia.

Eastern Hemlock

Tsuga canadensis

Native Range: Eastern North America

Eastern Hemlocks are large trees that have the potential to grow 70 to 100 feet tall at maturity. The bark was an important source for tannin, a naturally occurring polyphenol commonly used in the leather industry. Since 1950, these Hemlock populations have been devastated by a pest called Hemlock Wooly Adelgids. However, relatives of this tree in Asia are resistant to the insect.

Paperbark Maple

Acer griseum

Native Range: Eastern Asia

Paperbark Maple is a small, deciduous tree species that grows 20 to 30 feet tall. Its leaves are palmately shaped like a classic maple and are very coarsely toothed. In addition, it is one of only three maple species that has three small leaves in a cluster. These trees are especially unique because of their beautiful exfoliating bark. Paperbark maples have thin, cinnamon-colored bark that peels off in large curls like that of eucalyptus and birch trees.

Eastern White Pine

Pinus strobus

Native Range: Eastern North America

This tree species can grow 50 to 80 feet tall with an average life span of 200 years. This species is distinct from other pine species because they have 5 needle-like leaves in each cluster. This species of pine was also dedicated as Michigan鈥檚 state tree.

Japanese Maple

Acer palmatum

Native Range: Eastern Asia

Japanese maples have an average growth potential of 2 to 30 feet tall. This maple species is known for having five to ten palm-like lobed leaves, hence the species 鈥減almatum.鈥 In Japan, this maple is often called the 鈥淎utumn welcoming tree,鈥 and is planted on the western side of gardens (the direction from which fall comes).

Dawn Redwood

Metasequoia glyptostroboides

Native Range: Eastern Asia

Dawn Redwoods typically grow between 50 to 60 feet tall but can reach heights of over 150 feet. Redwood trees have been around almost as long as the dinosaurs (240 million years) and were here before flowers! Although the tree was thought to have been extinct for almost 20 million years, a small conservation group travelled to south-central China and found several thousand in lowland canyons in 1940.

Grand Fir

Abies grandis

Native Range: Eastern North America

Grand Fir trees have an exceptionally large mature height. This tree is largely cultivated as a Christmas tree because of its thick, pyramidal-shaped foliage at immature heights. In fact, this tree is used every year for the annual Christmas tree lighting at the President鈥檚 house!

American Elm

Ulmus Americana

Native Range: Eastern North America

The American Elm is native to Michigan, growing 60 to 100 feet tall. It is characterized by its thick ashy-gray bark, layered with alternating light and dark bands. American Elm leaves are alternate, simple, and doubly-serrate.