The Amorphophallus titanum fully opened up at Cuningham House on Tuesday and bloomed for 24 to 48 hours.
Native to Sumatra, Indonesia, the corpse flower blooms at unpredictable intervals, taking seven to 12 years to reach flowering size, and only for about 48 hours.
When in full bloom, it gives off a foul-smelling stench.
The smell is so bad that people have been known to faint after getting a whiff of it.
The corpse flower has been growing at the Botanic Gardens since 2008 but this was the first year it has flowered.
Botanic Gardens Director Wolfgang Bopp said people were lining up to see the plant bloom.
“This is a very rare and unusual plant and we’ve had people travelling from all across the region to see it," he said.
"It is a fascinating plant and people want to experience it for themselves.
“There is no saying exactly how long the plant will flower for but the advice we have is that it is likely to be about 24 to 48 hours.’’
