"The Holly Castle Spire, 'llex x 'Castle Spire', a Proven Winners selection, is one of the new blue hollies that are great for foundation plants. Castle Wall is compact and pyramidal in form This plant will attain heights of 8 to 10 feet and never be more tha 3 feet wide. The narrow form makes them great for hedges, foundation plantings, or as a specimen. The lustrous green foliage provides season long interest. Castle Wall will produce bright red berries in the fall and they will add color to the winter landscape."