Orontium aquaticum aka Golden Club

Orontium aquaticum, or golden club, belongs to the arum family. This aquatic perennial grows along pond edges and shallow streams. Its native range spans the eastern United States to Texas. It also grows in Britain as an introduced plant. Other names include floating arum, bog torches, and never-wet. Wild plants occupy bogs, swamps, and sandy or muddy shores.

Garden plants reach about 1–2 feet (0.3–0.6 metres) tall. Their spread ranges from 1–3.3 feet (0.3–1 metre). RHS gives a lower height limit than NC State. Thick, creeping rhizomes help the plant form spreading clumps. It takes time to settle into a new site. Full size may take five to ten years. The leaves die back each year. Their blue-green blades have smooth edges and a waxy surface. Leaves may sit underwater, float, or rise above the surface. Water slips off their waxy coating, giving the name never-wet.

Flowers appear from April to June on slender, club-shaped spadices. Tiny yellow to greenish-yellow flowers crowd the upper section. The small spathe fades fast and does not enclose them. These spikes stand out against dark pond water. Green berries with an uneven surface appear in spring. NC State records their display in May. The leaves and flowers make golden club a pond-edge specimen. It also suits bog gardens and water-filled containers.

Give plants full sun and wet, rich soil. Partial shade is possible, though leaf color may weaken. NC State favors acidic loam; RHS also lists other pH levels. Clay and loam both suit this plant. Plant in deep mud or baskets filled with loam. RHS allows water depths up to 2 feet (0.6 metres). NC State favors shallow moving water and notes possible pump needs. Sources list USDA zones 5–10 and UK hardiness H5. Remove faded flower spikes and yellow leaves. Divide rhizomes in spring, or sow fresh seed in shallow water. Serious pest and disease problems are not reported.

Raw plant tissue contains calcium oxalate crystals that irritate the mouth. It can also irritate the gut and cause contact dermatitis. Sources report food uses for roots and seeds after careful preparation. NC State calls for prolonged boiling with repeated water changes. Do not treat raw roots or seeds as safe food. Plants For A Future lists no known medicinal uses.