Picea glauca 'Conica'
Overview
Uses: Foundation plantings, entryway accents, container plantings, topiary, rock gardens, formal borders, mixed conifer beds.
Benefits: A naturally dense, perfectly conical form that holds its shape without pruning, soft bright green needles with year-round interest, and a slow growth rate that keeps the plant in scale for decades.
USDA Hardiness Zones: 3–8
Sun: Full Sun
Life Cycle: Coniferous Shrub
Growth Habit: Pyramidal — dense, symmetrical cone with uniform branching.
Foliage Color: Green
Mature Height: 10–13 ft.
Mature Width: 4–5 ft.
Growth Rate: Slow
Summary
There are few conifers as universally recognized or as widely planted as the Dwarf Alberta Spruce. Its perfectly symmetrical cone shape — dense, soft, and self-maintaining — has made it a foundation planting staple across the northern United States and Canada for over a century.
The foliage is bright green, fine-textured, and aromatic when brushed. Needles are soft to the touch, unlike the sharp foliage of many other spruces. New spring growth emerges a fresh, lighter green before maturing to the deeper tone that persists through winter. The branching is so tightly packed that the interior stays hidden, giving the plant a solid, sculpted appearance without any shearing.
Growth is slow — just 2 to 4 inches per year — which means 'Conica' stays in proportion next to walkways, entries, and low windows for many years before it outgrows its position. It works beautifully as a matched pair flanking a door, as a specimen in a rock garden, or as a living holiday tree in a patio container. Deer generally leave it alone, and it tolerates cold, wind, and brief dry spells once established.
Care
Dwarf Alberta Spruce 'Conica' Care
Plant in full sun for the densest form and best needle color. Light afternoon shade is tolerated in warmer zones but is not ideal. Avoid planting tight against walls or foundations where reflected heat and limited airflow can promote spider mite infestations — give 'Conica' at least a few feet of breathing room on all sides.
Soil should be moist, well-drained, and slightly acidic to neutral. This spruce adapts to loam, sand, and clay as long as drainage is adequate. Water regularly during the first year of establishment, and continue to provide consistent moisture during hot, dry periods — especially for the first few seasons.
Feed once in early spring with a slow release fertilizer. If your soil is alkaline, an acidic fertilizer will help maintain the deep green foliage color. Pruning is unnecessary for shape but can be done to remove occasional reversion shoots — vigorous branches with larger, faster-growing foliage that differ from the compact dwarf form. Remove these promptly at their base.
Size
What Size is the Dwarf Alberta Spruce 'Conica' for Sale Online?
Our Dwarf Alberta Spruce ships in a greenhouse-grade grow pot and is appropriately sized for its container at the time of shipment. If you have specific sizing or planting questions, please contact us.
How Large Does Dwarf Alberta Spruce 'Conica' Grow?
At maturity, 'Conica' reaches 10 to 13 feet tall and 4 to 5 feet wide, though reaching full size takes several decades at a growth rate of just 2 to 4 inches per year. After 10 years, expect a plant around 3 to 4 feet tall.
Additional Information
What are some common names for this plant?
This plant is commonly known as Dwarf Alberta Spruce, Dwarf White Spruce, or Alberta Spruce. The species, Picea glauca, is called White Spruce.
Is Dwarf Alberta Spruce native to North America?
'Conica' is a nativar selection of Picea glauca, a species native to Canada and the northern United States. This cultivar was discovered growing wild near Lake Laggan in Alberta, Canada in 1904 and was selected for its naturally compact, conical growth habit.
What is reversion and how do I handle it?
Occasionally, a branch on Dwarf Alberta Spruce will revert to the growth pattern of the full-sized White Spruce species — producing longer needles and growing much faster than the rest of the plant. These reversion shoots should be pruned out at their point of origin as soon as they are noticed. Left unchecked, the vigorous shoot will shade out the surrounding dwarf foliage and distort the plant's symmetrical form.
Is Dwarf Alberta Spruce deer resistant?
Yes. Deer generally avoid this spruce, making it a solid choice for foundation plantings in areas with regular deer activity. Spider mites are a more common concern than browse damage — good air circulation and occasional monitoring keep mite problems in check. For more browse-resistant evergreen options, explore our deer-resistant shrubs and evergreens collection.
Can Dwarf Alberta Spruce be grown in containers?
Yes, and its slow growth rate makes it an excellent long-term container plant for patios, entryways, and balconies. Use a well-drained potting mix and ensure the container has adequate drainage holes. Container-grown plants need more frequent watering than in-ground plantings, especially during summer. Plants hardy in the ground may require winter protection when grown in containers in colder zones.
