American Arborvitae, Northern White-Cedar

Heat Tolerance: Afternoon shade in hot areas

Sun Exposure: Full sun to part shade

Origin: Northeastern North America: southeastern Canada and the adjacent northern United States

Growth Habits: Evergreen tree with a narrow pyramidal crown, 40 to 50 feet tall (12-15 m) or more; trunk 12 to 24 inches in diameter (30-60 cm) with fibrous, red-brown to gray bark

Watering Needs: Moist soil in humid environment

Propagation: Named cultivars are propagated by heeled cuttings, wild plants by seeds

Propagation: Cutting or occasionally seed, layering

• by hardwood stem tip cuttings, in spring. Apply IBA Quick Dip 5000 PPM. Use intermittent mist. Root in 8-12 weeks. Wound cuttings..
• by layers.
• by seeds, in autumn. The seeds can be harvested in early autumn. The seeds need 40F for 2mo..

Thuja occidentalis, Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 1: 64. Courtesy of Kentucky Native Plant Society.

There are many named cultivars with varied size, shaped and foliage color.

Herman, D.E. et al. 1996. North Dakota tree handbook. USDA NRCS ND State Soil

Fruiting Habits:
Oblong cone, 0.5 inch long (1.2 cm), borne upright on the branches with leathery, red-brown scales