Plant Care American Marshpennywort

American Marshpennywort

About American Marshpennywort

American Marshpennywort is a super rare houseplant 🌿 that needs lots of water to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

American Marshpennywort likes soil that is good at retaining moisture. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.

American Marshpennywort belongs to the Hydrocotyle genus, and is native to East Canada to the North Central and Eastern United States.


Hydrocotyle americana

Also known as

American marshpennywort, navelwort and American water-pennywort

How to care for American Marshpennywort


How often to water your American Marshpennywort

Water needs for American Marshpennywort
0.5 cups
every 7

American Marshpennywort needs 0.5 cups of water every 7 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for American Marshpennywort in your home

Light needs and placement for plant American Marshpennywort: 1ft from a window
1ft or less from
a window

American Marshpennywort love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

American Marshpennywort does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of American Marshpennywort in your home 🏡.


How to fertilize American Marshpennywort

Nutrient, fertilizer, and repotting needs for American Marshpennywort: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your American Marshpennywort after it doubles in size or once a year—whichever comes first.

Water Needs
Sunlight Needs
Growth Pattern

Care Summary for American Marshpennywort

American Marshpennywort

Greg recommends:


0.5 cups every 7 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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