The leaves are wrapped around stalks on the plant, and unfurl as they grow.
The leaves on the Andersons' plants were still bright green last week, and some had yet to unfurl; white flowers were also blooming.
Barbara Anderson said "the most upsetting part" about tending elephant ears is having to cut off the leaves as the weather cools.
"You have a beautiful plant there, and you have to cut it down," she said.
Anderson said the leaves must be cut away to get back to the bulb.
She does not like "to cut those pretty leaves off, but they'll just turn yellow and die as soon as the first frost hits."
"It's sort of like, when they go away, that really is the end of summer," Anderson said.
The plants are not native to the United States, and have been listed as invasive in Texas and Florida, for their penchant for overshadowing local native plant species.
The plants, which grow from a tuber that is a staple of local people's diet in the tropics, are native to India and Southeast Asia, and were transported to the U.S. in 1910, according to a 2011 article on The Nature Conservancy's website.
"With its preference for wet, moist areas, it gravitates to wetlands and the banks of lakes and streams to form dense and ever-spreading colonies," the article, for which an author was not identified, stated. "The colonies can become thick enough to completely eliminate native stream side plants, altering the natural habitat and reducing biodiversity."