Marsh Pennywort
Kiersten lives in New Orleans, LA and graduated with her masters degree in Ecology and Evolutionary Biology from Tulane University in 2019.
She has conducted or assisted on research studies covering trees such as the bald cypress, swamp maple, and water tupelo, as well as important marsh grasses including Juncus, Spartina, and Phragmites.
Kiersten is a certified Louisiana Master Naturalist and regularly volunteers with local community gardens and nonprofits to help restore critical ecosystems along the Gulf Coast.
About Marsh Pennywort
Marsh Pennywort is a super rare houseplant šæ that is easy to grow and needs lots of water to thrive. They do best in long-lasting, direct light āļø and should be less than 1 foot from a window.
Marsh Pennywort likes soil that is good at retaining moisture. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.
Marsh Pennywort belongs to the Hydrocotyle genus, and is native to Northern Africa and Europe.
Taxonomy
Hydrocotyle vulgaris
Hydrocotyle
Apiaceae
Apiales
Also known as
Hydrocotle vulgaris

How to care for Marsh Pennywort

How often to water your Marsh Pennywort

every 7
Marsh Pennywort needs 0.5 cups of water every 7 when it doesnāt 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
7

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 Marsh Pennywort in your home

a window
Marsh Pennywort love being close to bright, sunny windows š.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Marsh Pennywort does not tolerate low-light š«.
Select your region to see how the current weather in your area affects the placement of Marsh Pennywort in your home š”.

How to fertilize Marsh Pennywort

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 itās likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Marsh Pennywort after it doubles in size or once a yearāwhichever comes first.

Marsh Pennywort is generally considered an easy-to-care-for plant and makes a great choice for beginners!
Water Needs
Marsh Pennywort is sensitive to dry soil and should be watered frequently. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Sunlight Needs
Marsh Pennywort requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive šŖ. Select your region to see how the current weather in your area affects the placement in your home š”.
Toxicity
Greg does not have confirmed data on this plantās toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, itās always best to consult a medical professional.
If you or someone else ingested this plant, call Poison Control atĀ US (800) 222-1222.Ā If a pet consumed this plant, contact your veterinarian or the ASPCA atĀ US (888) 426-4435.
Soil
Marsh Pennywort is very sensitive to dry soil, so choose a potting soil that retains moisture. A good soil will still drain well and contain lots of organic matter such as coco coir or sphagnum moss.
Fertilizer
Marsh Pennywort should be repotted after it doubles in size or once a year, whichever comes first. Fresh potting soil has all the nutrients your plant needs, so as long as itās refreshed yearly, you shouldnāt need to use fertilizer. Remember, plants get their energy from sunlight, not fertilizer!
Growing Outdoors
USDA Hardiness Zone
Marsh Pennywort can be grown outdoors in USDA Hardiness Zones 6a-10b. Find your local hardiness zone here.
Care Summary for Marsh Pennywort
Marsh Pennywort
Greg recommends:

0.5 cups every 7 days

< 1ft from a window

Repot after 2x growth
Based on the 4ā pot your plant is in, and that it doesnāt get direct sunlight.

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Gregās plant care information is derived from first-principles biology and physics and supported by peer-reviewed research, academic institutions, and industry experts. We are committed to providing the highest-quality plant care information available, so if you have any concerns about our content, feel free to reach out to our support.
- Plants for a Future. āPlant Database.ā pfaf.org. N.p., n.d. Web.
- Encyclopedia of Life. āEncyclopedia of Life.ā eol.org. N.p., n.d. Web.