Sweet Caroline Sweetheart Shadowstorm™ Sweet Potato Vine (Ipomoea) | Proven Winners® New Variety 2026

Can’t pick between green or purple for your container spiller? Why not have both—with flair? Sweet Caroline Sweetheart Shadowstorm™ is your go-to for a touch of drama and a whole lot of charm. Its heart-shaped leaves emerge a fresh green and slowly reveal a moody masterpiece of deep, near-black with speckled green accents—each leaf a little surprise from Mother Nature herself.

Unlike older variegated varieties that need constant haircuts to stay cute, Shadowstorm™ keeps its act together with a naturally fuller, bushier shape. It grows with the grace of a well-kept secret: no scraggly vines, no high maintenance—just effortless beauty from spring through fall.

• 6-16 inches tall and 20-36 inches wide at maturity
• Annual except in zone 11, be sure to check your USDA zone to ensure success
• Plant in part to full sun (4+ Hours)
• Space plants 10-18 inches apart for best results
• Maintains purple-black foliage with green variegation from spring to frost
• Great for borders, containers, groundcover, landscapes and mass plantings
• Foliage interest, heat tolerant, deadheading not necessary