Sweet Caroline Medusa™ Black Ornamental Sweet Potato Vine (Ipomoea batatas) | Proven Winners® New Variety 2026
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How Does Proven Winners® Measure Plant Sizes?
We list our plants by container size, which reflects the amount of soil and root growth each plant has when it ships. Actual plant height and width vary by variety and season, and many plants grow quickly as the weather warms.
To help you understand what to expect, refer to our size guide below. You can also find each plant’s approximate arrival size and mature size on its product page.
How Does Proven Winners® Measure Plant Sizes?
How Does Proven Winners® Measure Plant Sizes?
Plant Height By Container Size
This chart highlights the typical heights for each size category while also showing how container sizes compare, giving you a clear, straightforward way to understand plant size at arrival and choose the best fit for your gardening needs.
This chart shows typical plant heights and compares container sizes, helping you quickly understand arrival size and choose the best fit.
Soil Volume By Container Size
This chart shows the typical soil volume for each container size, listed in both imperial and metrics units for easy comparison.
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Proven Winners® Annuals
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Looking for bold, dramatic foliage with a twist? Meet Sweet Caroline Medusa™ Black—the garden’s answer to gothic glam. With deeply lobed, palm-shaped leaves so dark they’re nearly midnight, this sweet potato vine brings the drama in the most delightful way.
Unlike your typical trailing vines, Medusa™ Black keeps things tidy with a neat, mounded habit that’s more Boston fern than backyard sprawl. It forms a dense, billowy cloud of overlapping leaves that adds instant texture and intrigue to containers, hanging baskets, and landscapes—without demanding a regular trim. And don’t be fooled by its fancy looks—this plant is tough. Heat? Bring it on. Humidity? No sweat. Medusa™ Black thrives with easygoing energy and undeniable flair.
- 6-12 inches tall and 18-30 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 12-18 inches apart for best results
- Maintains purple-black foliage spring to frost
- Great for containers, groundcover, landscapes, mass plantings
- Fall interest, heat tolerant, deadheading not necessary
Care: Fertilize weekly with Proven Winners Water Soluble Plant Food for best performance. Prune to shape as desired throughout the season.
Shipping Info:
- Enjoy free shipping on orders over $175
- Size at shipping varies by season, plant, and trimming schedules
- Annuals are 4-8" tall at shipment
Read our guide to get started with planning a garden
