Thuja occidentalis 'Rheingold' Rheingold Cedar Description Dwarf, dense, golden-bronze foliage. Growth Habit: Compact, globe-shape, becoming clonical as matures.Mature Height: 3' to 5' (90cm to 150cm)Mature Spread: 2.5' to 4' (75cm to 120cm)Growth Rate: Moderate More Details Sun Exposure: Full sun to partial shadeCold Hardiness Zone: 3Sensitive to winter burnLandscape Uses: Rock garden and garden accent