Photo: Sue CarnahanCC BY 4.0via iNaturalistresized / cropped
Thurber's Buckwheat Plant Care
Eriogonum thurberi Torr.
Updated · Sources · How we source care data
With its unique silvery-gray foliage, Eriogonum thurberi is a visually striking plant native to the deserts of the southwestern United States. Its compact size, drought tolerance, and ability to attract pollinators make it a sought-after addition to any arid garden.
Every 7–14 days
Full sun
50–90°F
20–60%
At a glance
How do you care for Thurber's Buckwheat?
Water Thurber's Buckwheat every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 50–90°F (10–32°C) and 20–60% humidity. Fertilize it every month during the growing season.
Where Is the Thurber's Buckwheat Native To?
What Is the Thurber's Buckwheat?
Thurber's Buckwheat (Eriogonum thurberi) belongs to the Polygonaceae family within the Eriogonum genus. Thurber's Buckwheat is native to the desert southwest of North America in Arizona, California, New Mexico and three desert states of Mexico.
Thurber's Buckwheat displays a low mounding perennial growth habit, reaching up to 1 ft tall with a spread of approximately 2 ft. Thurber's Buckwheat produces small clusters of tiny white, pink, or yellow flowers.
Leaf size: approximately 2 inches.
How Often Should You Water a Thurber's Buckwheat?
Eriogonum thurberi 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 Thurber's Buckwheat Need?
Thurber's Buckwheat thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Thurber's Buckwheat Prefer?
Eriogonum thurberi grows best at temperatures of 50–90°F. Thurber's Buckwheat prefers humidity levels of 20–60%.
Temperature
50–90°F
Humidity
20–60%
What Soil Mix Works Best for a Thurber's Buckwheat?
Well-draining sandy or gravelly soil with low fertility. Good drainage is essential for Thurber's Buckwheat to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Thurber's Buckwheat?
Feed Thurber's Buckwheat every month 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 month
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Thurber's Buckwheat?
Repot every 3-4 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 Thurber's Buckwheat?
Thurber's Buckwheat can be propagated through seeds, division. Similar propagation techniques also apply to nodding buckwheat plant care, which shares the same genus.
Is the Thurber's Buckwheat Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Thurber's Buckwheat, 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 Thurber's Buckwheat?
Thurber's Buckwheat is susceptible to aphids, spider mites. 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 Thurber's Buckwheat Need?
Thurber's Buckwheat grows outdoors in USDA Zone 8a – 10b. It survives winters down to planting zone 8a. Thurber's Buckwheat is native to the desert southwest of North America in Arizona, California, New Mexico and three desert states of Mexico.
Hardiness Zone
Zone 8a – 10b
Keep exploring plants
Thurber's Buckwheat 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 Eriogonum genus — compare its care with other Eriogonum species on PlantoScan.
Eriogonum is part of the Polygonaceae plant family — browse all Polygonaceae genera and species.
Thurber's Buckwheat thrives in bright light and direct sun — see other bright-light plants.
More Eriogonum Species
Other Eriogonum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Eriogonum thurberi Torr., family Polygonaceae (first published in Rep. U.S. Mex. Bound. 2(1): 176 (1859)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Thurber's Buckwheat, 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: Sue Carnahan, CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 8a – 10b, 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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