Dioscorea discolor is a stunning tropical vine native to Ecuador that transforms any garden space with its dramatically variegated foliage. The pointed, heart-shaped leaves are richly marbled in dark green, pale green, and white with a silvery midrib on top and reddish-purple undersides, creating a living work of art as it climbs. This tuberous vine grows rapidly, typically reaching 10 to 12 feet in a single season, and produces delicate clusters of small, white, fragrant flowers in drooping panicles. Hardy in zones 9 through 11, it can be left in the ground year-round in warm climates, or lifted and stored over winter in cooler regions. Whether grown as a seasonal ornamental or a tender perennial, this counterclockwise-twining vine delivers the visual drama of a tropical garden.
Full Sun
Moderate
9-11
144in H x 72in W
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High
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The foliage is the real star here, with leaves so intricately patterned in emerald, cream, and silver that they look almost hand-painted. Paired with fragrant white flowers dangling from the vines come late season, and the sheer vigor of growth, this vine becomes a living focal point on any trellis or fence. The tuberous root system means you can grow it as an annual and simply dig and store the tuber over winter, making it surprisingly flexible for gardeners outside the warmest zones.
This is purely an ornamental vine, grown for its spectacular foliar display rather than any edible purpose. Plant it on a sturdy trellis, arbor, or fence where the dramatic variegated leaves and fragrant flowers can be fully appreciated. The rapid, vigorous growth makes it excellent for quickly screening unsightly structures or creating a living wall of color in warm seasons.
No timeline data available yet for this variety.
You can start tubers indoors in spring 4 to 6 weeks before your last frost date by placing them in moist, organically rich potting soil. Keep soil warm and consistently moist until sprouting occurs, then transplant to larger containers or directly outdoors after the last frost passes.
Harden off any indoor-started plants by exposing them to increasing periods of outdoor conditions over 7 to 10 days before planting. Transplant to their permanent location after all danger of frost has passed and soil has warmed, spacing them 3 to 6 feet apart depending on your trellis or support structure. Water thoroughly at planting and maintain consistent moisture for the first few weeks.
You can plant tubers directly into the garden in spring after the last frost date and soil temperature has warmed to at least 60 degrees Fahrenheit. Bury tubers at a depth of 2 to 3 inches in organically enriched soil and water well to settle the soil around them.
Minimal pruning is needed beyond directing the vine onto its support structure as it grows. Remove any dead or diseased vines during the growing season, and if the vine becomes overgrown or tangles, gently untangle and guide it back onto the trellis. In cooler climates where you lift tubers in fall, simply cut back the dead vines after the first frost.
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“Dioscorea discolor hails from Ecuador, where it evolved as a tropical forest vine. As a member of the Dioscorea genus, it shares its family with edible yams that have been cultivated for thousands of years across Africa, Asia, and the Americas, though this particular species was selected and propagated for ornament rather than food. The spread of tropical ornamental plants to temperate gardens throughout the 20th century brought cultivars like this one into cultivation worldwide, where gardeners prized the spectacular foliage year-round in frost-free zones and seasonally in cooler climates.”