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Swamp jessamine

Making It Grow Radio Minute
SC Public Radio
Making It Grow, with host Amanda McNulty

Hello, I’m Amanda McNulty with Clemson Extension and Making It Grow. Swamp jessamine, Gelsemium rankinii, is also a native yellow jessamine, just a different species from the more prominent Gelsemium sempervirens, sempervirens meaning evergreen; swamp jessamine is evergreen, too. In nature, swamp jessamine grows in sunnier spot alongside rivers and in flooded wetlands. If you have a frequently wet space in your yard you can plant it there with the added bonus of it’s being able to survive drier times once it’s well established. It isn’t fragrant, but to tell the truth, I’ve never paid much attention to the fragrance of Gelsemium sempervirens, our regular yellow jessamine. Swamp jessamine blooms in both the spring and again in the fall, you might even get a few flowers during a warm spell in winter. Don’t forget both are extremely toxic, except to native insects.

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Amanda McNulty is a Clemson University Extension Horticulture agent and the host of South Carolina ETV’s Making It Grow! gardening program. She studied horticulture at Clemson University as a non-traditional student. “I’m so fortunate that my early attempts at getting a degree got side tracked as I’m a lot better at getting dirty in the garden than practicing diplomacy!” McNulty also studied at South Carolina State University and earned a graduate degree in teaching there.