Blackberries can grow from seed, but spread much more quickly by producing root suckers. When the sucker touches the soil, the cane roots itself and grows a new plant.
About this Author
Sandi Valentine is a freelance writer who specializes in alternative health and mental-health topics. She has over five years of professional experience working in a psychiatric hospital. Valentine began writing online in 2007 and her writing has appeared in "The Main ARTery" and "In the Panhandle." She holds a Bachelor of Arts in psychology from Shepherd University.