California Blackberry: Not to be confused with the weedy non-native Himalaya blackberry. This native blackberry can form a large patch. To 3 ft. tall by 6 ft. wide. Grows larger in wet areas. This thorny, spreading evergreen has excellent habitat value. The berries are widely used as a food, and nesting source for wildlife. Good for erosion control. Smaller sized berries are very tasty. Best with some shade and moisture, but is drought tolerant once established.