Blue Korean Arborvitae Tree - Thuja koraiensis

Blue Korean Arborvitae Tree (Thuja koraiensis)

The Blue Korean Arborvitae is a striking evergreen specimen that commands attention with its stunning slate-blue needle-like foliage and distinctive silvery undersides. This upright tree brings sophistication and visual depth to any landscape, and many homeowners choose to buy Blue Korean Arborvitae trees online for the convenience of having this ornamental treasure delivered directly to their property. Its refined appearance and compact growth habit make it a favorite for creating focal points or anchoring mixed plantings.

Landscaping Uses

This tree excels as a standalone accent plant or as part of a layered border design where its cool blue tones provide contrast against traditional green plantings. Plant it in prominent locations where it receives good light exposure, or incorporate it into foundation plantings and specimen gardens. Its open branching structure and wildlife-friendly growth habit also make it an excellent choice for natural garden settings and properties where you want to support local birds and beneficial insects.

Specifications

Height: 15–20 feet
Width: 8–10 feet
Growth Rate: Moderate
Sun: Full sun to partial afternoon shade
Water: Consistently moist; intolerant of drought
Soil: Well-drained, fertile soil
USDA Zones: 4–7

Why Homeowners Love It

• Distinctive blue-gray foliage with silvery highlights creates year-round visual interest
• Graceful, naturally spreading form requires minimal pruning and maintenance
• Thrives in cooler climates and performs well with consistent moisture
• Attracts wildlife while serving as an elegant landscape statement piece

Planting & Care

Plant your Blue Korean Arborvitae within four weeks of arrival in a location receiving full sun or afternoon shade with well-drained soil. Dig a hole twice the width of the root ball at the same depth, position the tree so the base sits level with the ground surface, and water thoroughly after backfilling. Apply a 3-inch mulch layer extending 3 feet around the base, keeping mulch away from the trunk. Water regularly to maintain consistent soil moisture, especially during establishment and dry periods. In early spring, feed with a balanced slow-release fertilizer and remove any dead or damaged branches as needed to maintain the tree's natural, open form.