Growth Rate
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- Growth Rate: Slow to moderate growth rate, typically 12-24 inches per year under ideal conditions.
- Mature Height: Can reach a mature height of 40-60 feet with a spread of 10-20 feet, depending on growing conditions and the specific variety.
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Colorful leaves
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Flowering
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No |
Disease resistant
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No |
Cold Tolerant
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Yes |
Heat Tolerant
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No |
Drought Tolerant
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No |
Deer Resistant
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Yes |
Edible
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No |
Wildlife Attraction
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- Birds & Small Mammals: The seeds from the cones provide food for birds, such as crossbills, chickadees, and nuthatches, as well as small mammals like squirrels. The dense branches offer shelter and nesting sites for various wildlife.
- Wildlife Resistant: Deer typically avoid White Spruce, making it a good choice for areas with heavy deer populations.
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Self-pollinating
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Seasonality
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White Spruce is monoecious, producing both male and female cones in late spring (May to June). |
Ideal For
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1. Windbreaks and Privacy Screens- Tall, dense branching provides year-round protection from wind, snow, and visual intrusions
- Ideal for rural properties, farms, and open landscapes
2. Specimen or Focal Tree- Its narrow, pyramidal shape and soft blue-green foliage make it an excellent choice for showcasing in large lawns or open areas
3. Wildlife Habitat- Offers shelter and nesting for birds and small mammals
- Female cones produce seeds that attract birds and squirrels
4. Reforestation and Naturalization- Native to North America and widely used in reclamation and reforestation projects
- Thrives in poor, sandy, or rocky soils once established
5. Cold Climate Landscaping- Exceptionally hardy to Zone 2; withstands heavy snow and extreme cold without damage
- Maintains attractive color and structure even in the harshest winters
6. Christmas Tree FarmsWith symmetrical form and dense foliage, it is a popular choice for live or cut Christmas trees
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Leaf Description
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The needles of Picea glauca are short, stiff, and bluish-green, arranged radially around the branches. These aromatic needles remain on the tree year-round, giving it a classic evergreen appearance that adds color and texture to the landscape. |
Flower Description
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- Flower Description: Male cones are small, reddish-brown, and found on the lower branches, while the female cones are green or purplish and located higher up on the tree. The cones mature into brown, cylindrical cones by late summer, providing seasonal interest.
- Cones: Mature cones are about 1.5-2.5 inches long and drop in autumn, adding ornamental value.
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Planting Instructions
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- Planting Season: Best planted in early spring or fall, when temperatures are cooler. Container-grown trees can be planted during the growing season with proper watering.
- Planting Depth: Plant at the same depth as the root ball, ensuring the base of the trunk is at ground level. The planting hole should be twice the width of the root ball to allow for root expansion.
- Soil Requirements: Prefers well-drained, slightly acidic to neutral soil. White Spruce is highly adaptable to a variety of soil types, including sandy, loamy, and even clay soils, as long as they are not waterlogged.
- Spacing: Space trees 10-20 feet apart, depending on their use in the landscape, whether as a windbreak, privacy screen, or ornamental tree.
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Pruning & Maintenance
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Minimal pruning is required. Prune in late winter or early spring to remove any dead, damaged, or diseased branches. For a more compact shape, light pruning can be done, but avoid heavy pruning as it can disrupt the tree's natural form. |
Water Needs
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Water regularly during the first few years to help establish a strong root system. Once established, Picea glauca is drought-tolerant but will benefit from occasional deep watering during prolonged dry periods. |
Light Needs
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Full sun is essential for optimal growth. The tree requires at least 6-8 hours of direct sunlight per day to maintain its dense, conical shape and healthy foliage. |
Harvesting
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While Picea glauca is not harvested for edible fruit, it does offer valuable decorative and ecological harvesting opportunities |
Fertilizing
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Fertilize in early spring with a balanced, slow-release fertilizer, especially if the soil is nutrient-poor. Avoid over-fertilizing, as White Spruce is not a heavy feeder. |
Additional Care Tips
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- Pest & Disease: White Spruce is relatively pest- and disease-resistant but may occasionally suffer from issues like spruce budworm or aphids. Good air circulation and proper spacing can help prevent most problems.
- Mulching: Apply a 2-3 inch layer of organic mulch around the base of the tree to help retain moisture, suppress weeds, and protect the roots from temperature fluctuations. Keep mulch away from the trunk to prevent rot.
- Winter Care: No special winter care is needed, as White Spruce is highly cold-hardy (USDA Zones 2-6). In areas with heavy snow, avoid piling snow on the lower branches to prevent breakage.
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Pollination
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- Pollination Method: White Spruce is wind-pollinated. The male cones release pollen, which fertilizes the female cones, resulting in seed production by late summer. The seeds are dispersed by wind or consumed by wildlife.
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Companion Plants
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🌳 Evergreen & Shrub Companions- Juniperus horizontalis ‘Blue Chip’ – Low-spreading blue foliage creates a textural and color contrast
- Buxus sempervirens (Boxwood) – Adds formal structure beneath the airy canopy of mature spruce
- Rhododendron or Azalea – Offers broadleaf contrast and spring bloom under partial shade of the lower branches
🌸 Perennials & Flowering Companions- Echinacea purpurea (Purple Coneflower) – Tall flowers add color and attract pollinators in open spaces near spruce
- Lupinus perennis (Wild Lupine) – Adds vertical floral spikes and nitrogen enrichment to soil
- Heuchera (Coral Bells) – Colorful foliage for shaded northern side or perimeter of spruce groupings
🌾 Grasses & Groundcovers- Festuca glauca ‘Elijah Blue’ – Compact grass echoes the spruce’s cool-toned needles
- Pachysandra terminalis – Excellent evergreen groundcover for partial shade zones near spruce bases
- Hosta spp. – Bold foliage contrast for the shadier side or north-facing edge of mature trees
💡 Design Tip: Use contrasting textures (fine vs. broad-leaved), complementary colors (blue-green vs. purple or gold), and layered heights to frame your spruce beautifully while promoting biodiversity. |