Does a Magnolia Tree Need a Second One to Live?
Magnolia is an ancient genus of tree that is fossil-dated to millions of years ago. It is variously identified as having between 80 and 210 species within the genus, depending on the botanical classification system used. Many magnolia tree species were listed as critically endangered or endangered by the Global Trees Campaign in 2007. Understanding the magnolia tree’s reproduction cycle and cultural requirements has become critical to saving the remaining populations of this beautiful tree. Does this Spark an idea?
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Reproduction
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Magnolia tree flowers are arranged in whorls with thick, waxy petals that look like leaves. Pollinating beetles crawl into the center of the flower looking for nectar. They are dusted with the flower’s pollen and spread it to the flower's ovary. Pollinated seeds grow into fruit-seed clusters that ripen in late summer. Mature magnolia fruit-seed clusters are bright orange to red. Fallen seeds and seeds carried by birds germinate and develop into trees.
Cultural Needs
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Magnolia trees do not require a second magnolia tree to survive, but they do have distinctive cultural needs. Their root system is unbranched and rope-like. It grows wider than most trees' and tends to circle the trunk or root ball. Magnolias are difficult to transplant because of their fleshy, rope-like roots. Their bark is thin and easily damaged by string trimmers or mowers.
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Uses
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Magnolias are soft-wooded trees valued for their straight-grained wood and their showy flowers. Land clearance, logging and agriculture have contributed to the loss of magnolia tree species. China and Colombia have the largest representation of magnolia species currently under threat of extinction. In the United States, magnolias are a prized tree used extensively in public parks and home gardens. It is the state tree of Mississippi.
Growing Conditions
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The southern magnolia reaches 60 to 80 feet at maturity and is often grown as a specimen tree. Its sturdy, white, fragrant flowers reach 12 inches in diameter. Southern magnolias and other magnolia species prefer slightly acidic soil. They thrive in partial to full shade in moist, well-draining soil. Magnolias can be planted alone or in groups for visual appeal or as an effective screen barrier.
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References
Resources
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