Dwarf Alberta Spruce
Picea glauca ‘Conica’
Plant Details
USDA Plant Hardiness Zones:Â 4a-7b (8 in cool-summer climates, 3?)Â Â Find Your Zone
Plant Type:Â Coniferous Evergreen Tree
Height at Maturity:Â 5-6′ at 10 years of age; 8-10′ over time
Width at Maturity:Â 2-3′ at its base at 10 years of age; 4′ or so at its base over time
Spacing:Â Â Best as specimen, or 2 to frame an entrance, or in spaced groupings at 6’+ apart
Growth Habit / Form:Â Dense, Pyramidal, Upright, Conical
Growth Rate:Â Slow
Foliage Color:Â Blue-Green with Soft Golden Yellow new growth in spring and again in summer
Fragrant Foliage:Â Yes
Sun Needs:Â Full Sun or Mostly Sun
Water Needs:Â Â Average
Soil Type:Â Â Clay (well draining), Loam, Sandy (amend quick draining soil for moisture retention), SiltÂ
Soil Drainage:Â Moist But Well Drained
Soil pH:Â 6.0 – 7.5
Maintenance / Care:Â Very Low
Attracts:Â Visual Attention
Resistances:Â Cold Temperatures (-30F), Deer, Wind
Description
Discovered as a natural mutation at Iseli Nursery, ‘Rainbow’s End’ is an extraordinary version of the Dwarf Alberta Spruce that flushes bright lime green new growth in spring with a second flush of new growth in summer that’s blazing lemon-yellow, contrasting beautifully with the darker blue-green interior foliage. Eventually the foliage turns to green just in time to serve as the perfect outdoor Christmas tree to decorate for the holiday season. As with its cousin, Rainbow’s End naturally maintains a very dense pright pyramidal form to around 8 feet in height and 4 feet wide or so at its base over time, which makes it ideal for use in containers and small landascape spaces. Rainbow’s End has proven hardy in USDA Zones 4 to 7 in hot-summer climates and 8 where summers aren’t so hot.
Landscape & Garden Uses
Growing slowly in a pyramidal form to 8 feet tall and 3 to 4 feet wide at its base over time, the Rainbow’s End Alberta Spruce is ideal for use as a specimen in sunny small garden spaces and containers or in spaced groupings at 6 feet apart in large spaces. A fine accent in home foundation plantings where it can be useful to frame an entryway, soften corners, or fill space between windows. It’s very dense pyramidal form makes it the perfect outdoor Christams tree. A fine addition to conifer gardens, formal gardens, yellow theme gardens.
Suggested Spacing:Â 3 feet apart for hedges, 6 feet or more apart for space between plants
Growing Preferences
Dwarf Alberta Spruce is easy to grow in a damp to moist but well-drained soil of average fertility. As with so many other conifers, constantly soggy or wet soils can be problematic; leading to root rot or other harmful plant diseases. So make sure to plant this one in well-drained soil, whether in the ground or in pots. It grows best in full sun however in Zones 7b and 8a in the south it will prefer some shade or filtered sun during the middle of the afternoon. Once established water needs are quite low when growing in the ground. In pots, soil moisture will need to be monitored more closely, especially during summer. When the top two inches of soil is dry, provide water.
Note:Â In Zones 7b and 8a the Alberta Spruce does better in the ground than in pots so that its roots are not exposed to the hot air temperatures and would also prefer some shade or filtered sun in the afternoon hours.
Note:Â Â Find helpful advice from our experts under the Planting & Care tab above on desktop monitors or below on mobile devices.
Plant Long & Prosper!
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