This cultivar was selected for its unique foliage: Rather than growing flat, the needles curl upward, making its branchlets look cylindrical. This exposes the silvery undersides of the dark green needles, providing a shimmery, two-toned effect.
Another ornamental feature is its dramatic blue-purple cones, which sit upright like candles on the branches. Beautiful during any season, 'Silberlocke' is sure to draw admiring glances to your landscape.
Common name: 'Silberlocke' Korean fir
Botanical name: Abies koreana 'Silberlocke' (syn. A. koreana 'Horstmann's Silberlocke')
Plant type: Evergreen conifer
Zones: 5 to 7
Height: 20 to 30 feet
• Sun: Full sun or partial shade
• Soil: Loam or sandy loam with additional organic matter
• Moisture: Evenly moist, but well-drained
• Mulch: 2 to 3 inches of wood chips or other organic mulch
• Pruning: Rarely needed, except to remove damaged branches
• Fertilizer: Apply compost or diluted soluble fertilizer as needed.
Pests and diseases
• No major problems
• Plant 'Silberlocke' Korean fir where you'll see it all year. With its unique and beautiful foliage, it shines as a specimen tree.
• Though slow growing, it's not a dwarf, so give it enough room to mature.
• Combine it with shrubs or small trees with colorful fruit (such as hollies, viburnums, crabapples and hawthorns) for excellent winter appeal.
All in the family
• 'Silberlocke' Korean fir is a member of the pine family (Pinaceae), which contains many important landscape and timber trees including pines, spruces and firs.
• There are about 50 species of fir (Abies). They include some of the most beautiful conifers for landscape use, though most don't grow well in warmer parts of the country.
Photos courtesy of Conifer Kingdom