Wapato Plant Care
Sagittaria cuneata E.Sheld.
Updated · Sources · How we source care data
Sagittaria cuneata is a North American species of flowering plant in the water plantain family known by the common name arumleaf arrowhead or duck potato. Like some other Sagittaria species, it may be called wapato.
Every 2–4 days
Full sun to part shade
60–80°F
60–80%
At a glance
How do you care for Wapato?
Water Wapato every 2–4 days, letting the top layer of soil dry out between waterings, and give it full sun to part shade. It prefers temperatures of 60–80°F (16–27°C) and 60–80% humidity. Fertilize it every 6 months during the growing season.
What Is the Wapato?
Wapato (Sagittaria cuneata) belongs to the Alismataceae family within the Sagittaria genus. Wapato is also known as Wapatos, Duck Potato, American Arrowhead.
Wapato displays an aquatic perennial herb growth habit, reaching up to 2 ft tall with a spread of approximately 1.5 ft. Wapato produces white, three-petaled flowers on tall stalks.
Leaf size: approximately 8 inches.
How Often Should You Water a Wapato?
Sagittaria cuneata requires watering every 2–4 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 2–4 days
Let soil partially dry between waterings
What Light Does the Wapato Need?
Wapato thrives in full sun to part shade.
Light Requirement
Full sun to part shade
What Temperature and Humidity Does the Wapato Prefer?
Sagittaria cuneata grows best at temperatures of 60–80°F. Wapato prefers humidity levels of 60–80%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–80°F
Humidity
60–80%
What Soil Mix Works Best for a Wapato?
Rich, loamy soil with good moisture retention. Good drainage is essential for Wapato to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Wapato?
Feed Wapato every 6 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Wapato?
Can be repotted annually in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Wapato?
Wapato can be propagated through division, seeds. Similar propagation techniques also apply to broadleaf arrowhead plant care, which shares the same genus.
Is the Wapato Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Wapato, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Wapato?
Wapato is susceptible to aphids, leaf miners. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
What USDA Hardiness Zone Does the Wapato Need?
Wapato grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. In cooler regions, grow Wapato as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Wapato is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Sagittaria genus — compare its care with other Sagittaria species on PlantoScan.
Sagittaria is part of the Alismataceae plant family — browse all Alismataceae genera and species.
Wapato thrives in bright light and direct sun — see other bright-light plants.
More Sagittaria Species
Other Sagittaria species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Sagittaria cuneata E.Sheld., family Alismataceae (first published in Bull. Torrey Bot. Club 20: 283 (1893)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Wapato, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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