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Plants of the Eloise Butler Wildflower Garden

Common
Name

Scientific
Name

Plant
Family

Garden
Location

Prime
Season

Climbing Bittersweet
Celastrus scandens L.
Bittersweet
Upland
Late Spring to Early Summer. Berries to late Autumn
Other names and notes
(American Bittersweet). A perennial woody vine of sunny areas that flowers in late May and then produces a cluster of berries that gradually turn from green to yellow to orange over the season. Late in the fall the orange covering of the berry splits open along three division lines revealing a scarlet berry inside. The flowers in spring are small 5-part, yellowish-greenish, borne in open terminal clusters. The dark green leaves are oval with sharp teeth and a pointed tip, borne alternately along the stems which trail if there is no support. With support and left to grow over the years, the vine can become quite large and reach to 20 feet. Winter Interest: Once the leaves drop in the fall, the brilliant fruit clusters will remain through the winter if the birds don't frequent them. In the home garden setting it is frequently found growing on arbors and the sides of small buildings. The density of the branches on an older plant provides good cover for birds, both in winter and for summer nesting. Deer will browse young plants. Do not buy the Oriental Bittersweet (C. orbiculata) which is invasive. It has slightly different fruit clusters and leaves that are rounded at the tip.
flower cluster
flower
Above: The flower clusters of late spring - these on May 28. Below: The green fruit develops within a month. Above: The five-parted small flower. Below: The trailing stems with alternate leaves with pointed tips.
Green fruit
vine
   
Fruit early August
Late fall fruit
Above: By early August the fruit is turning color. Below: Within three weeks the color has deepened as the fruit ripens. Above and Below: In late October and early November the outer covering will split back revealing the scarlet berry inside.
Fruit late august
late fall fruit
Below: The orange color of the berries in early October before the leaves have turned color and dropped.
 
Bittersweet fruit
 
Notes: This plant is indigenous to the Garden area. Eloise Butler catalogued it on April 29, 1907. The plant is native to Minnesota in most counties. There are widely scattered exceptions with most exceptions located in the SW Quadrant of the State. In the Upland Garden, the plants only grow as low vines. The photos above are all of vines in the Upland Garden. Curator Susan Wilkins planted additional specimens in 2006.  
 

 
References: Plant characteristics are generally from sources 15, 16, 30, 31, 33, W2 & W3. Distribution principally from W2 and also 31, 34 and W1. Planting history generally from 1, 4 & 4a. Other sources by specific reference. See Reference List for details.  
©2008-2012 Friends of the Wild Flower Garden, Inc. All photos are the property of The Friends of the Wild Flower Garden unless otherwise credited. "www.friendsofthewildflowergarden.org" 021611