When Does the Corpse Flower Bloom?

The Amorphophallus titanum, widely known as the Corpse Flower, is a botanical marvel that originates from the tropical rainforests of Sumatra, Indonesia. This unique plant has earned its common name due to the potent odor it emits during its rare and brief blooming events. Beyond its unusual scent, the Corpse Flower captivates public attention with its impressive size and infrequent flowering, making each bloom a significant horticultural occasion. Its intriguing reputation stems from these characteristics, drawing curious onlookers to botanical gardens worldwide whenever it prepares to unfurl.

The Corpse Flower’s Infrequent Bloom

The Corpse Flower is renowned for its unpredictable and infrequent blooming cycle, a primary reason for its public allure. A plant typically requires 7 to 10 years from seed to accumulate sufficient energy for its initial bloom. After this first flowering, subsequent blooms can occur every 2 to 10 years, with cultivated plants sometimes blooming more frequently than those in their natural habitat. The timing between these events is not fixed, as the plant only blooms when its underground storage organ, a corm, has gathered enough reserves.

Once a bloom begins, its duration is short, typically lasting only 24 to 48 hours, though it can extend up to 72 hours. The most intense period of scent and display often occurs during the first night into the early morning. While specific environmental triggers are not fully understood, the plant’s ability to bloom is directly linked to the energy stored in its corm and optimal growing conditions.

Distinctive Characteristics of the Bloom

The Corpse Flower’s bloom presents a striking visual and olfactory experience. It is considered the largest unbranched inflorescence in the plant kingdom, with cultivated specimens often reaching heights of 6 to 8 feet, and some in the wild growing over 10 to 12 feet tall. The structure consists of a large, frilled, petal-like leaf called a spathe, which is green on the outside and a deep red or maroon on the inside, encircling a central, towering spike known as a spadix.

The plant’s “rotting flesh” odor is its most distinctive characteristic, earning it the common name. This powerful stench, a complex mix of chemicals, serves a biological purpose: attracting specific pollinators like carrion beetles and flesh flies drawn to decaying organic matter. To further enhance the dispersal of this odor, the spadix generates heat, raising its temperature by as much as 20 degrees Fahrenheit above the surrounding air. This thermogenesis helps volatilize the odorous compounds, allowing the scent to travel further and more effectively lure pollinators from a distance.

The Post-Bloom Cycle

Following its brief display, the Corpse Flower enters a different phase of its life cycle. After the bloom collapses within a few days, the plant typically goes into a period of dormancy. If the bloom was successfully pollinated, the plant will produce a fruit containing seeds, which can take several months to develop and ripen.

Subsequently, a single, tree-like leaf emerges from the underground corm. This impressive leaf, which can grow up to 15 to 20 feet tall, is responsible for photosynthesis, producing energy for the plant. The energy generated during this leaf cycle is stored in the corm, which continues to grow larger with each successive leaf. After this leaf persists for about 12 to 18 months, it dies back, and the plant enters another dormant phase, accumulating energy in its corm until enough is stored for another bloom.