Field Bindweed

Field Bindweed

Convolvulus arvensis



Field bindweed is a List C vining perennial in the morning glory family (Convolvulaceae).

Known to be in North America since the 1700s and in Colorado since 1872, it was introduced as a contaminant of seed.  It can now be found in all 50 states.  It is a native to Eurasia and Asia and naturalized in many other areas.

It has a thick taproot that can grow to 20-30 feet deep and multiple horizontal rhizomeswith buds that form new plants.  Plants can easily regrow from root fragments. The root mass can reach 2½ to 5 tons per acre.

The trumpet shaped flowers form in the leaf axis.  Flowers form from late spring untilfrost.  The 1-inch-wide flowers are white to pink and have two small bracts that form ½ to 2 inches below the flower.

Each flower produces a roundish fruit that contains 2 to 4 seeds.  The seeds can stay viable in the soil for 20+ years.

Field bindweed stems are 5+ feet long.  They are twisted and are either prostrate or can climb and cover other plants, fences, and structures.

The 2inch long and 1-inch-wide leaves are alternate, simple and arrow shaped, smallertowards the ends of the stems.  

A serious pest in wheat and bean crops, it also invades vineyards, orchards, degraded rangelands, landscaped areas, and lawns.  Field bindweed can harbor plant diseases (potato X disease, tomato spotted wilt, and vaccinium false bottom).

Control using cultural techniques and/or systemic herbicides.  It requires persistent efforts over multiple years.  The bindweed gall mite, Aceria malherbae has shown some good success in areas that are grazed or mowed.



Pacific Northwest Extension – Field bindweed (PDF)


National Park Service


Washington State University