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The Gardens
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Sarracenias at Longwood Gardens
by Alan Petravitch
Visitors to the Children’s Garden, Fern Passage, Peirce’s Woods, and the conservatories are amazed by the insect capturing tubular leaves of Sarracenia or pitcher plants. These plants, native to swampy areas of the Eastern United States, with low nutrient content in the soil, have adapted their leaves into traps that capture insects. They attract insects in several ways. The flowers of the Sarracenia have an unpleasant aroma that draws flies. The red veins of the pitchers themselves look like blood vessels and attract mosquitoes. The throats of some Sarracenia secrete sugary droplets that attract bees and wasps. Once the insect has been lured into the pitcher, it gets trapped and is digested by juices.
The leaves and flowers of Sarracenia put on quite a show that makes them a unique addition to our displays. Flowers usually appear in the spring and are followed by the emergence of pitcher. These pitchers come in color ranges of white, red, green and yellow. The first round of pitchers starts to look tattered after a few months. A second round of pitchers normally follows later in the season. Then winter conditions with short days and cool temperatures cause the plants to go dormant. In 2000, it was noticed that a S.leucophylla hybrid continued to send up new pitchers in Longwood’s fern passage throughout the Christmas season. The Fern Passage kept warm all year and is lit for guests until at least 9pm from Thanksgiving through the first week of the New Year. These conditions prevented dormancy and stimulated active plant growth that produced new pitchers. The great performance of this plant was one of the factors that generated interest in using more Sarracenia on display.
In 2001, Longwood started a breeding program to create pitcher plants with large, tall, pitchers with pleasing colors to increase their presence on display. Various crosses were made with Sarracenia leucophylla, S. x popei, S. x readii, S. catesbaei, S. alata, and S. mitchelliana, and S. purpurea. We are currently in the process of evaluating these seedlings. Once a hybrid has been determined to be superior, it will be multiplied in tissue culture, and possibly be named and released to the trade. Currently, we are working on naming and developing a culture guide for one of our Sarracenia hybrids.
Displays & Upcoming Events
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Orchid Extravaganza
now through March 25
Explore a magical world of orchids where thousands of colorful blooms drape from walls, flow from baskets, and form captivating archways in artful displays.
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What's in Bloom
A team of Longwood Volunteers gathers horticultural highlights from the Outdoor Gardens and Conservatory. Download a pdf of their top picks for the week, including photos and locations.
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International Orchid Show & Sale
March 23–25
Experience the American Orchid Society-judged show, take a tour, hear a talk, and find the perfect orchid to take home. In collaboration with the Southeastern Pennsylvania Orchid Society.
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Light: Installations by Bruce Munro
Opening June 9
Experience Longwood Gardens in a whole new light through the evocative and imaginative art of Bruce Munro, British lighting artist.
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