Most plants sold as P. obtusifolia are from tropical American stock; local sources are recommended both to protect the genome and to enhance your like , Tolerance, Not salt tolerant of inundation by salty or brackish water. Low/no tolerance of salty wind or direct salt spray , Habitat, Swamps (epiphytic on trees/logs). , Did You Know?, Interesting foliage The floral morphology of Peperomia species suggests wind- and/or insect pollination, but not much is known.

In a 2020 study of salt in irrigation water (https://journals.ashs.org/hortsci/view/journals/hortsci/55/7/article-p1119.xml), this species was found t , Tolerance, Tolerant of inundation with brackish water Some tolerance to salty wind but not direct salt spray. , Considertions, Can become weedy. , Wildlife, Attracts  hummingbirds. , Habitat, Dry sites. Open, ruderal. , Did You Know?, Showy flowers Attracts butterflies.