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Calgary Boxwood

Buxus x 'Calgary'

  • Extreme Cold Hardy Calgary Boxwood Thrives Where Other Boxwoods Fail
  • Thrives in Zones 3-9
  • Grows 2-3 ft Tall and Wide
  • Deer Resistant, Rabbit Resistant
  • Showy White Blooms in Late Spring
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Plant Size

Planting & Care

Where to Plant

  • Sunlight: Aim for a location that receives at least four to six hours of direct sun daily. Full sun encourages the most compact, dense growth, which is what you want for formal hedging. Partial shade is acceptable, but the foliage density may be slightly reduced, making the plant a bit more open.
  • Soil: This shrub is adaptable but absolutely demands well-drained soil. If you have heavy clay, spend time working in ample organic matter like compost and possibly some coarse grit or expanded shale to ensure water moves freely; Boxwood roots hate sitting in standing moisture. It prefers a slightly acidic to neutral pH.

Watering Requirements

During its first season, water your Boxwood deeply two to three times per week, especially during summer heat, until the root system is established. Once mature, the Calgary Boxwood is quite drought tolerant, but it benefits from a slow, deep soaking every few weeks during prolonged dry spells. Inconsistent watering will stress the plant, causing the leaves to become smaller and potentially leading to foliage bronzing or dull color. Remember to give it a thorough drink before the ground freezes in late fall to prevent winter burn.

Pruning Tips

The goal of pruning Boxwood is to maintain its dense shape and encourage healthy internal air circulation. This plant primarily produces new foliage on new wood. The best time for shaping is in late winter or early spring before the new growth flush begins. For highly formal hedges, you can give it a very light, corrective shear in late spring or early summer after the initial growth has matured. Critically, avoid any heavy pruning after mid-August; cutting back too late will stimulate soft new growth that will not have time to harden off before frost, leading to severe winter tip damage.

Fertilizer Needs

Apply a slow-release, balanced granular fertilizer, like a 10-10-10, or a fertilizer formulated for acid-loving shrubs (like Holly-tone) in early spring, right as the new growth starts. This provides the season’s essential nutrients. What to avoid: Do not feed your Boxwood with high-nitrogen fertilizer after mid-July. This late-season feeding encourages soft, late-season growth that is extremely susceptible to frost damage and dieback, negating your hard work.

Delivery and Shipping

Shipping Rates

Ships in 7-10 business days • Tracking provided • Weather protected

Under $50 $9.99
$50 - $99.99 $14.99
$100 - $149.99 $16.99
$150 - $198.99 $24.99
$199+ FREE

✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee

Specifications

Plant specifications
Plant Characteristics Attracts pollinators, Cold hardy, Compact/Dwarf, Container Friendly, Deer-resistant, Evergreen, Fragrant, Full Sun, Hedge/Screen, Low Maintenance, Non-invasive, Rabbit Resistant, Shade Tolerant
Hardiness Zone 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Sunlight Full sun, Partial shade
Height 2-3 ft
Width 2-3 ft
Watering Needs Moderate
Preferred Soil Clay, Loamy, Sandy
Growth Rate Moderate
Growth Habit Bushy, Upright
Blooms In Spring
Flower Color White
Foliage Color Green
Fragrant Yes
Pet Safety Toxic to pets
Suitable Space Outdoors
Plant Name Boxwood
Botanical Name Buxus x 'Calgary'
Species x
Cultivar Calgary
Class Magnoliopsida
Does Not Ship To AK, HI, ID, MT, PR

Frequently Asked Questions

What is the growth rate of Calgary Boxwood - slow, medium, or fast?

  • Calgary Boxwood has a slow to medium growth rate, reaching its mature size of 2-3 feet tall and wide gradually over several years. This steady growth habit contributes to its low-maintenance nature and dense, naturally rounded form. Plan for patience as it establishes, but enjoy minimal pruning once mature.

Is Calgary Boxwood deer resistant?

  • Calgary Boxwood is generally deer resistant due to its dense, waxy foliage that deer typically avoid. However, deer preferences can vary by region and season, especially during harsh winters when food is scarce. For best results in deer-heavy areas, consider pairing with other deer-resistant plants available at naturehills.com.

How much maintenance does Calgary Boxwood require once established?

  • Calgary Boxwood is exceptionally low maintenance once established, requiring minimal pruning due to its naturally dense, rounded growth habit. This hardy shrub thrives in zones 4-9 with little intervention. Simply trim lightly in late spring if needed to maintain shape.

Can Calgary Boxwood be pruned and shaped, and when is the best time to do so?

  • Calgary Boxwood responds well to pruning and shaping, though its naturally dense, rounded form requires minimal trimming. The best time to prune is late spring after new growth hardens off, or light shaping in early summer. Avoid pruning in fall since new growth may not harden before winter in zones 4-9.

How long does it take for Calgary Boxwood to establish after planting?

  • Calgary Boxwood typically establishes within 6-12 months after planting. This hardy shrub (Zones 4-9) develops its dense root system relatively quickly due to its compact 2-3 foot size. Water regularly the first year and you'll see steady growth. Shop quality Calgary Boxwood at naturehills.com.

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