Longstem Buckwheat Plant Care
Eriogonum elongatum Benth.
Updated · Sources · How we source care data
Eriogonum elongatum, commonly known as longstem buckwheat or wand buckwheat, is a species of wild buckwheat native to coastal southern and Baja California.
Every 7–14 days
Full sun
50–90°F
20–60%
At a glance
How do you care for Longstem Buckwheat?
Water Longstem 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.
Where Is the Longstem Buckwheat Native To?
What Is the Longstem Buckwheat?
Longstem Buckwheat (Eriogonum elongatum) belongs to the Polygonaceae family within the Eriogonum genus. Longstem Buckwheat is native to coastal southern and Baja California.
Longstem Buckwheat displays a low mounding perennial growth habit, reaching up to 1 ft tall with a spread of approximately 2 ft. Longstem Buckwheat produces small clusters of tiny white, pink, or yellow flowers.
Leaf size: approximately 2 inches.
How Often Should You Water a Longstem Buckwheat?
Eriogonum elongatum 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 Longstem Buckwheat Need?
Longstem Buckwheat thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Longstem Buckwheat Prefer?
Eriogonum elongatum grows best at temperatures of 50–90°F. Longstem Buckwheat prefers humidity levels of 20–60%.
Temperature
50–90°F
Humidity
20–60%
What Soil Mix Works Best for a Longstem Buckwheat?
Well-draining sandy or gravelly soil with low fertility. Good drainage is essential for Longstem Buckwheat to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Longstem 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 Longstem Buckwheat?
Longstem Buckwheat can be propagated through seeds, division.
Is the Longstem Buckwheat Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Longstem 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 Longstem Buckwheat?
Longstem 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 Longstem Buckwheat Need?
Longstem Buckwheat grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Longstem Buckwheat is native to coastal southern and Baja California. In cooler regions, grow Longstem Buckwheat as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 12a
Keep exploring plants
Longstem 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.
Longstem Buckwheat 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: Eriogonum elongatum Benth., family Polygonaceae (first published in Bot. Voy. Sulphur : 45 (1844)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Longstem 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.
- 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.
Identify Plants Like the
Longstem Buckwheat Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species