Photo: no rights reservedCC0 1.0via iNaturalist
Fisher's Dupontia Plant Care
Dupontia fisheri R.Br.
Updated · Sources · How we source care data
With its striking silvery-blue foliage that resembles tufts of cotton candy, this plant originates from the coastal regions of Alaska. Plant collectors are drawn to Dupontia fisheri for its unique appearance and ability to thrive in sandy, coastal environments, making it a coveted addition to seaside gardens.
Every 7–14 days
Full sun to partial shade
60–85°F
40–70%
At a glance
How do you care for Fisher's Dupontia?
Water Fisher's Dupontia every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun to partial shade. It prefers temperatures of 60–85°F (16–29°C) and 40–70% humidity. Fertilize it every 8 months during the growing season.
Where Is the Fisher's Dupontia Native To?
What Is the Fisher's Dupontia?
Fisher's Dupontia (Dupontia fisheri) belongs to the Poaceae family within the Dupontia genus. Fisher's Dupontia is native to subarctic and subalpine areas of northern Canada, plus Alaska, Greenland, Svalbard, and Asian and European Russia. Fisher's Dupontia is also known as Arctic Grass.
Fisher's Dupontia displays a tall, clumping grass growth habit, reaching up to 6 ft tall with a spread of approximately 3 ft. Fisher's Dupontia produces small inconspicuous flowers on tall spikes.
Leaf size: approximately 12 inches.
How Often Should You Water a Fisher's Dupontia?
Dupontia fisheri requires watering every 7–14 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 7–14 days
Let soil partially dry between waterings
What Light Does the Fisher's Dupontia Need?
Fisher's Dupontia thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Temperature and Humidity Does the Fisher's Dupontia Prefer?
Dupontia fisheri grows best at temperatures of 60–85°F. Fisher's Dupontia prefers humidity levels of 40–70%.
Temperature
60–85°F
Humidity
40–70%
What Soil Mix Works Best for a Fisher's Dupontia?
Well-draining loamy soil with high organic content. Good drainage is essential for Fisher's Dupontia to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Fisher's Dupontia?
Feed Fisher's Dupontia every 8 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 8 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 Fisher's Dupontia?
Divide and repot every 2-3 years in early 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 Fisher's Dupontia?
Fisher's Dupontia can be propagated through division, seed sowing.
Is the Fisher's Dupontia Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Fisher's Dupontia, 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 Fisher's Dupontia?
Fisher's Dupontia is susceptible to aphids, grasshoppers, cutworms. 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 Fisher's Dupontia Need?
Fisher's Dupontia grows outdoors in USDA Zone 1a – 3b. It survives winters down to planting zone 1a. Fisher's Dupontia is native to subarctic and subalpine areas of northern Canada, plus Alaska, Greenland, Svalbard, and Asian and European Russia.
Hardiness Zone
Zone 1a – 3b
Keep exploring plants
Fisher's Dupontia 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 Dupontia genus — compare its care with other Dupontia species on PlantoScan.
Dupontia is part of the Poaceae plant family — browse all Poaceae genera and species.
Fisher's Dupontia thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Dupontia fisheri R.Br., family Poaceae (first published in Chlor. Melvill. : 33 (1823)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Fisher's Dupontia, 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.
- Photo: Public domain, CC0 1.0, iNaturalist — original.
- Hardiness zone: USDA Zone 1a – 3b, estimated from the plant's typical growing conditions.
- 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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