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January/February 1999 issue
Arum-atic
by Mark C. Mollan
Whether it inspired the Broadway play and subsequent movie
Little Shop of Horrors is unknown, but the fabled titan arum (Amorphophallus
titanum) surely could have landed the man-eating lead role.
The blooming of the six-foot-three-inch-tall inflorescence
with the scent of rotting meat tripled attendance records at
the Atlanta Botanical Garden (ABG) for the first 10 days in
July 1998. It was the first titan arum to bloom in Georgia and
only the seventh to flower in the United States since the
plant was introduced from Indonesia in 1937. “It is a wonder
what nature can do. The plant’s just a fascinating darn
thing!” exclaimed ABG visitor Carl Beck as he gazed at the
plant amid children holding their noses.
A rare native of the rain forests of Sumatra, an island in
western Indonesia, the titan arum grows from a tuber that
typically sprouts and sheds one massive leaf each year until
it reaches a threshold weight of between 20 and 40 pounds.
Once the ABG specimen reached that threshold on June 12, a
flower shoot emerged from the tuber and grew at a rate of
about four inches a day until it reached its fully erect
flowering position on Independence Day. The flower - which
lasts only a few days - collapsed on July 8th.
Although it is often described as the largest flower in the
world, A. titanum actually produces an inflorescence, or
compound flower. The flower emits a pungent odor of decaying
flesh to attract the carrion-eating insects that pollinate it
in its native habitat. ABG staff attempted to artifically
pollinate the arum using pollen obtained from a titan arum
that bloomed in June at Fairchild Tropical Garden in Miami.
According to Ron Gagliardo, curator of tropicals at ABG’s
Dorothy Chapman Fuqua Conservatory, “If the pollination is
successful, it will be the first time in history a cultivated
Amorphophallus titanum will have produced seed.” In addition,
pollen collected from the ABG plant was put in cold storage in
readiness to be shipped around the world for the next
inflorescence that blooms.
More of these otherworldly blooms are expected at ABG in
late spring or early summer 1999 as other A. titanum tubers
reach the threshold that begins the flowering cycle. For
additional information, visit the ABG web site at
www.atlantabotanicalgarden.org or call the Atlanta
Botanical Garden at (404) 876-5859.
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