Hibiscus sp. (Rosemallow) - Image 14 Botanical name: Hibiscus sp. Common names: Rosemallow, HibiscusFamily: Malvaceae USDA Plant Hardiness Zone Map USDA Zone: 8-10?Hardiness: 15°F See full plant profile: Hibiscus sp. (Rosemallow) Hibiscus calyphyllus Learn more about growing Hibiscus sp. (Rosemallow) Learn more about Hibiscus sp. SharePin Hibiscus sp. About Tropical Plant Encyclopedia · Pictogram Guide·