Height: 5′-7′ Spread: 2′-3′. This Proven Winners® has combined the narrow fern-like foliage of R. asplenifolia with the upright habit of ‘Columnaris’. ‘Fine Line’ was developed by Ron Williams of Scenic View Nursery in Green Bay, Wisconsin. Bright yellow fall color. Purple-black berries in late summer can be poisonous if ingested. Makes a unique fine-textured hedge. Full sun to partial shade. Zone 3.