Ipomoea bolusiana Schinz
Ipomoea angustisecta, Ipomoea mesenterioides, Ipomoea praetermissa, Ipomoea rubro-viridis, Ipomoea simplex
Ipomoea bolusiana is a dwarf perennial shrub with a thick tuberous rootstock and one or several erect or prostrate stems. The tuber is up to 8 inches (20 cm) in diameter. Stems are slender, hairless, woody at the base, and up to 10 feet (3 m) long. Leaves are green, widely spaced, narrow, and up to 2.8 inches (7 cm) long. Flowers are borne near the stem's base, mauve or magenta-pink, darker in the centers, funnel-shaped, and up to 2.8 inches (7 cm) long.
USDA hardiness zones 10b to 11b: from 35 °F (+1.7 °C) to 45 °F (+7.2 °C).
How to Grow and Care
Most species have spectacular, colorful flowers and are often grown as ornamentals, and many cultivars have been developed. In the garden, Ipomoeas need full sun and moderately fertile, well-drained soil. Provide shelter from the wind. Prune climbing species in spring. Under glass, provide full light with protection from the hottest sun. Water freely and fertilize monthly during the growing season, but water sparingly in winter. Climbers and trailing species need support.
Chip seeds with a knife, scrape with sandpaper, or soak in water 24 hours before sowing at 64 °F (18 °C) in spring. Root softwood cuttings of perennials or shrubs in spring or summer, or take semi-ripe cuttings in summer.
White blister, rust, fungal leaf spots, stem rot, thread blight, charcoal rot, and wilt can occur.
Learn more at How to Grow and Care for Ipomoea.
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