The Morton Arb

Trees & Gardens

How Plants are Named
The words in the scientific name of a plant all mean something. Learn how plants get such interesting names. Click here
How To Read a Plant Label at the Arboretum

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All of the plants and trees in the Arboretum. Search listings
Use our Plant Collections Map to identify where plants are located on our grounds.

Geographic Groups

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Central & Western Asia

Plants from the dry mountainous regions of countries like Kazakhstan and Armenia inhabit the hillsides of this collection. You will find these plants blooming after the nourishing rains of spring.

Turkish hazelnut leaves at the Morton Arboretum

Much of Central & Western Asia is mountainous with a cold, sunny, and dry climate. In an attempt to replicate these conditions, parts of this collection are displayed in beds of sand and gravel on rock outcroppings in sun-exposed conditions. This simulates the open arid regions of the species' native habitats. Since these plants evolved in dry climates, they can tolerate periodic droughts common in the Chicago region. These plants typically flower in summer after spring rains have brought them nutrients and energy.

Started in 1925, this collection has grown to include nearly 450 plants, representing 151 species on 1.09 acres. The plants come from the western border of China westward to the Mediterranean Sea and the Black Sea, from such countries as Tajikistan, Turkmenistan, Kazakhstan, Kyrgyzstan, Armenia, and Georgia.

Notable features in this collection include the scaly bark of the large Turkish hazelnut (Corylus colurna) and Persian parrotia (Parrotia persica), and the yellow spring flowers and edible summer fruits of Cornelian-cherry dogwood (Cornus mas). Don't miss the towering specimens of Nordmann firs (Abies nordmanniana), Oriental spruce (Picea orientalis) and Schrenk's spruce (Picea schrenkiana ) that are focal points in the collection. These conifers are outstanding with snow covered branches in winter. Take note of the numerous younger wild-collected plants that we are observing for hardiness and beauty.