Ipomoea mauritiana is a vigorous twining vine native to montane forests and tropical regions across southern China, Japan, Southeast Asia, and the Pacific Islands. This tender perennial thrives in zones 10-12 and grows as a warm-weather annual in cooler climates, reaching 10 to 15 feet in a single season. Its funnel-shaped flowers in shades of pink to reddish purple (occasionally white, red, or magenta in cultivars) open each morning and close by afternoon, creating a reliable daily display from June through October. The plant demands full sun and moderate water in well-drained soil, making it low-maintenance once established and remarkably easy to grow from seed.
Full Sun
Moderate
10-12
180in H x 48in W
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High
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This vigorous vine produces showy, funnel-shaped flowers in pink and reddish purple tones that reliably bloom from early summer through fall. The morning opening and afternoon closing of its blooms give the plant both its common name and a charming daily rhythm in the garden. Butterflies and hummingbirds seek out these flowers throughout the growing season, while deer leave the foliage untouched. Starting from seed indoors just 6-8 weeks before your last frost date, with a simple nick to the seed coat, you'll have a vine that easily climbs any support structure and blooms abundantly with minimal intervention.
Morning glory is grown primarily as an ornamental annual vine for garden structures, trellises, and arbors. Its showy flowers and twining growth habit make it valuable for vertical gardening, screening, and adding summer color to fences and walls. The plant's appeal to butterflies and hummingbirds also makes it a choice for pollinator gardens and wildlife-focused landscapes.
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Start seed indoors 6-8 weeks before your last spring frost date. Nick the seed coat with a knife before planting to improve germination. Sow seeds in moist seed-starting mix at a warm temperature, keeping soil consistently moist until seedlings emerge. Transplant seedlings outdoors after all danger of frost has passed.
Transplant seedlings outdoors 1-2 weeks after your last frost date, once soil has warmed and all frost danger has passed. Harden off plants gradually by exposing them to outdoor conditions for increasing periods over 7-10 days before final planting. Space plants 24-36 inches apart, depending on the vigor of your cultivar and desired coverage. Ensure each plant has immediate access to its support structure.
Seed can be sown directly outdoors after the last frost date, though this will delay flowering significantly. Nick the seed coat before sowing to improve germination rates.
Pruning is generally unnecessary as the vine's natural twining growth and vigorous habit keep it within bounds on a trellis. In zones 10-12 where the plant overwinters, you may cut back mature growth in late winter to encourage fresh, compact new growth and heavier flowering. Removing spent flowers does not significantly extend blooming, as the plant will continue flowering throughout the season naturally.
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“Ipomoea mauritiana hails from diverse tropical and subtropical regions: montane forests, thickets, streambanks, and seashores across southern China, Japan, Southeast Asia, Sri Lanka, New Guinea, the Philippines, and Pacific Islands. The plant's common name, morning glory, reflects a widely appreciated characteristic among morning glory species, a naming convention that has become botanical shorthand. Though native to these specific regions, the vine has naturalized throughout the Pantropics and is now cultivated globally as an ornamental annual, spreading from its original range into gardens where gardeners value its vigorous growth, reliable bloom, and minimal pest pressure.”