Water Plants

Hydrocotyle spp.

Water pennywort (sold as water pennyroyal)

Representative Hydrocotyle verticillata leaves; the nursery stock is identified only to genus. Original photo

Coin-shaped green leaves rise on slender stalks above creeping stems, making a low, leafy accent at a wet pond margin. The nursery-supplied photo supports pennywort rather than culinary mint; this listing does not assign a species or edible use.

At a glance

Sun: Part shade
Pond placement: Contained wet bed or pond margin; keep leaves above the surface.
Winter care: Winter hardiness varies across Hydrocotyle species. Without a species ID, protect a pond container from freezing rather than promising outdoor survival.
Water: Consistently moist to wet soil

Sizes & prices

6"$16.99

Catalog updated September 8, 2026. This is not a live stock count; please call to confirm availability and price.

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Resistance & tolerances

Wet soil: Pennyworts of this type grow in wet margins and shallow water.

Keep in mind: Not a culinary pennyroyal mint. Do not eat or use as an herbal remedy.

Seasonal interest

Foliage: Rounded, umbrella-like leaves.

Water garden care

Size: Spread and height depend on the unidentified species or selection.
Planting method: Aquatic basket for pond-edge planting; keep spreading roots contained.
Spread: Keep in a basket and trim escaping stems; never release trimmings into waterways.
Watering: Do not let the root zone dry out.

Sources & photo credits

NC State Extension

yavapaiplants.extension.arizona.edu

www.plantsofhawaii.org

NC State Extension

Virginia Cooperative Extension

Royal Horticultural Society

Photo: Ton Rulkens · CC BY-SA 2.0

Image notes: Representative Hydrocotyle verticillata leaves; the nursery stock is identified only to genus. Original photo, uncropped.

Reviewed September 27, 2026. Growing conditions vary by location.