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Ocean-Blue Morning Glory
Ocean-blue morning glory, photographed at Spanish River Park, Boca Raton, Palm Beach County, in December 2017.
ocean blue morning glory

There are about 25 varieties of native and nonnative morning glory in Florida. The ocean-blue morning glory, ipomea indica, has to be among the most beautiful.

But which is it, native or non? It's not an easy question to answer. In fact it might not have a conclusive answer.

Ocean-blue morning glory is found in warmer places pretty much around the globe, in South America, Africa, Asia, Australia — and right here in the United States, along the Gulf Coast, Florida to Texas, and in California.

It's found in Florida's northwest corner and as far south as the Florida Keys. Most sources, including the Institute for Regional Conservation, the University of Florida's Center for Aquatic and Invasive Plants and University of South Florida's Atlas of Vascular Plants, list it as a native.

The U.S. Department of Agriculture, however, classifies it as introduced throughout its U.S. range, including Hawaii, Puerto Rico and the U.S. Virgin Islands as well as the mainland. The government of the Australian state of Queensland in a paper assessing the invasive threat ocean-blue morning glory that presents down under, cites one source that lists tropical Asia as the plant's home, but adds that it's so widespread that it's difficult to say where it's from. Of course, the next question is, if it's not from here how did it get here? We have no definitive answer.

Ocean-blue morning glory is a perennial twining vine, and a rapid, aggressive grower and its climbing ability is considerable. It can climb as much as 45 feet. It extremely aggressive and can form dense mats that smother trees and shrubs.

ocean blue morning glory

The flowers are large, about two to thee inches across, and funnel shaped typical of morning glories. The throat has a star pattern that creates a pentagonal shape. The flower is typically deep blue when it emerges in the morning, with red or pink outling the star pattern. As the day goes on, the deep blue fades into a lighter shade. Ocean-blue morning glory can vary somewhat in color. In the Florida Keys, the flower can have a white throat. Blooming season is year round.

Ocean-blue morning glory is a perennial; according to the Queensland report, it can live as long as 25 years. It's widely used as a landscaping plant because of its gorgeous flower; its rapid growth and thick vegetation make it popular for trellises, arbors, fences et al. But it needs to be used with caution.

Native Hawaiians used various parts of the plant to make a variety of remedies, for back pain, to treat flesh woods and broken bones, as a laxative and as a strengthener for mothers and infants.

It's classified as a prohibited noxious weed in Arizona and as a noxious weed in Arkansas, but both states generally look unkindly at most members of the morning glory family.

Other names common names and spelling variations include blue dawn flower and blue morning glory and oceanblue morning glory. Ocean-blue morning glory is a member of Convolvulaceae, the morning glory family.

Photographs by David Sedore
county distribution map for ocean blue morning glory


United States Department of Agriculture (USDA) distribution maps for ocean-blue morning glory.

ocean blue morning glory north america
Links for Ocean-Blue Morning Glory
Unless otherwise stated, all photographs are property of the publishers and may not be used without their express permission.