Anatomy of a Hibiscus Flower

Overview

Hibiscus belongs to the mallow family (250–300 species: shrubs, trees, perennials, annuals). Dark green leaves, deciduous flowers (fall within a day). Up to 15 feet in frost-free areas. Flowers to 6 inches, diverse colors. Common northern species: H. rosa-sinensis, bred for size/color, not winter-hardy.

Root and Shoot Systems

Two main systems connected by vascular tissue. Roots anchor and absorb water/nutrients. Shoot system bears flowers, stems, leaves.

Floral Parts (Outside to Inside)

Sepals: Leaf-like, protect bud. Petals: Brightly colored, attract pollinators. Stamens: Each has filament, anther (4 pollen chambers). Carpels (Pistil): Stigma (sticky pollen receiver), style (neck), ovary (contains ovules/eggs).

History

Associated with Hawaii but likely originated in Asia. Spread to mainland U.S.; grown as tropical annual. Dig bulbs after first frost or transition pots seasonally.