Polygonaceae
American buckwheat vine
Brunnichia ovata
Also known as Rajania caroliniana, Fallopia cirrhosa, Rajania ovata, Buckwheat vine
Zones 5–9Sun Partial SunWater ModerateCare Moderate
Native Plants · Vine · Native · Climbing · Buckwheat · Papery · Seeds · Southeastern · Deciduous · Vigorous · Support
Pet-safeAttracts pollinators
Currently out of stock everywhereStock updated 9/6/2026
This native climbing vine produces attractive papery seed clusters and small white flowers. Provide strong support as it can reach considerable height and weight. Prefers rich, moist soil but adapts to various conditions.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water when top inch of soil is dry · Every 7-10 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 6–7.5
- Temperature
- -10°F to 90°F
- Cycle
- Perennial
Hardiness
USDA 5a-9b
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Form & growth
Mature size and habit
- Mature height
- 10 ft – 20 ft
- Spread
- 10 ft
- Spacing
- 48 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Arkansas, Florida, Georgia, Illinois, Kentucky, Louisiana, Mississippi, Missouri, Oklahoma, South Carolina, Tennessee, Texas, Virginia
- Attracts
- Bees, Butterflies
Sources: trefle
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No nursery lists American buckwheat vine right now.