Eriogonum congdonii Plant Care
Eriogonum congdonii (S.Stokes) Reveal
Updated · Sources · How we source care data
Eriogonum congdonii is a species of wild buckwheat known by the common name Congdon's buckwheat. It is endemic to the Klamath Mountains of northern California, where it is an uncommon member of the serpentine soils flora in the local forests.
Every 7–14 days
Full sun
50–90°F
20–60%
At a glance
How do you care for Eriogonum congdonii?
Water Eriogonum congdonii 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.
Where Is the Eriogonum congdonii Native To?
What Is the Eriogonum congdonii?
Eriogonum congdonii (Eriogonum congdonii) belongs to the Polygonaceae family within the Eriogonum genus. Eriogonum congdonii is native to the Klamath Mountains of northern California.
Eriogonum congdonii displays a low mounding perennial growth habit, reaching up to 1 ft tall with a spread of approximately 2 ft. Eriogonum congdonii produces small clusters of tiny white, pink, or yellow flowers.
Leaf size: approximately 2 inches.
How Often Should You Water a Eriogonum congdonii?
Eriogonum congdonii 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 Eriogonum congdonii Need?
Eriogonum congdonii thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Eriogonum congdonii Prefer?
Eriogonum congdonii grows best at temperatures of 50–90°F. Eriogonum congdonii prefers humidity levels of 20–60%.
Temperature
50–90°F
Humidity
20–60%
What Soil Mix Works Best for a Eriogonum congdonii?
Well-draining sandy or gravelly soil with low fertility. Good drainage is essential for Eriogonum congdonii to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Eriogonum congdonii?
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 Eriogonum congdonii?
Eriogonum congdonii can be propagated through seeds, division. Similar propagation techniques also apply to nodding buckwheat plant care, which shares the same genus.
Is the Eriogonum congdonii Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Eriogonum congdonii, 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 Eriogonum congdonii?
Eriogonum congdonii 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 Eriogonum congdonii Need?
Eriogonum congdonii grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Eriogonum congdonii is native to the Klamath Mountains of northern California. In cooler regions, grow Eriogonum congdonii as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Eriogonum congdonii 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.
Eriogonum congdonii 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 congdonii (S.Stokes) Reveal, family Polygonaceae (first published in Aliso 7: 220 (1970)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Eriogonum congdonii, 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 12a, 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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