sold by 1 gallon pot=Unlike wild Blackberries, the thornless varieties grow long straight vine-like branches called canes. You can trellis the canes to keep them off the ground, conserving space in the garden and making fruit harvest easier. Space plants at least three feet apart to allow sun exposure and airflow through the canes and room to spread. Thrives in most soil types and tolerates a wide range of moisture conditions. Plant in full sun for most fruit production. Little to no disease issues, the major pest problem being birds stealing the berries.