A wild blackberry plant's height depends on its variety. Allegheny blackberries (Rubus allegheniensis), common in the Eastern United States, are 3- to 6-feet high. California blackberry (Rubus ursinus) is from 2- to 5-feet tall. Highbush and leafy-flowered blackberries (Rubus argutus; Rubus frondosus) each grow between 3- and 6-feet tall.
About this Author
A freelance writer, Judy Wolfe has owned Prose for the Pros, a freelance writing business, since 2006. She's been an inveterate traveler since 1961 and draws on her travel experiences to provide articles for such websites as Chincoteague Island Vacations and Berlin Dude. Wolfe holds a Bachelor of Arts in literature from California State University at Pomona.