Growing Information

Growing Zone Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9,
Sunlight Medium to bright light,
Type of Soil Alkaline to neutral,
Mature Height 2-3 feet
Maintenance Level Moderate maintenance
Water Requirement Moderate watering (once a week)

Learn more about this plant

Additional Information
Growth Rate

  • Speed: Slow to Medium; 'Green Gem' grows steadily, adding several inches per year.
  • Mature Size: Reaches a height and spread of 2-3 feet, making it ideal for low hedges, borders, or container gardening.
Colorful Leaves No
Flowering No
Bloom Colour N/A
Ornamental Berries N/A
Disease resistant Yes
Cold Tolerant Yes
Heat Tolerant Yes
Drought Tolerant No
Deer Resistant Yes
Edible No
Wildlife Attraction

Buxus hybrid 'Green Gem' does not specifically attract wildlife due to its lack of significant flowers or fruit. However, its dense foliage can provide shelter for small birds and insects.

Self-pollinating Self-pollinating
Seasonality
  • Flowering Season: 'Green Gem' produces small, inconspicuous flowers in early spring (March to April), but they are not significant in terms of ornamental value.
  • Seasonality: As an evergreen shrub, 'Green Gem' maintains its lush green foliage throughout the year, providing consistent color and structure in your garden.
Ideal For
  • Formal Borders & Low Hedges – Excellent for edging paths, walkways, and flower beds
  • Foundation Plantings – Perfectly shaped and evergreen for architectural balance
  • Topiary or Clipped Forms – Maintains shape well with regular light pruning
  • Container Planting – Works beautifully in pots for patios, porches, or entrances
  • Cold-Hardy Evergreen Option – One of the best boxwoods for harsh winters
  • Mixed Beds – Offers structure and evergreen color among perennials and flowering shrubs

Leaf Description

The leaves of 'Green Gem' are small, rounded, and have a deep green color with a glossy texture. The dense foliage forms a compact, rounded shape that adds a refined look to any garden design.

Flower Description

The flowers are small, greenish-yellow, and not particularly showy. They appear in early spring but are largely overshadowed by the plant’s attractive foliage.

Planting Instructions

  • Planting Season: Best planted in spring or fall. This timing allows the plant to establish its roots before the onset of extreme weather conditions.
  • Soil Requirements: Prefers well-drained soil with moderate fertility. It can tolerate a range of soil types but thrives in well-drained conditions.
  • Spacing: Space plants 2-3 feet apart to accommodate their mature size and ensure proper air circulation.

Planting Instructions:

  1. Dig a hole that is twice as wide and as deep as the root ball.
  2. Amend the soil with organic matter to improve drainage and fertility if needed.
  3. Place the plant at the same level it was growing in the pot, and backfill with soil.
  4. Water thoroughly and apply mulch around the base to retain moisture and suppress weeds.
Pruning & Maintenance

Prune 'Green Gem' in late winter or early spring before new growth begins. Regular pruning helps maintain its shape and encourages dense, healthy growth. Remove any dead or damaged branches and trim to achieve the desired form.

Water Needs

Green Gem' requires consistent moisture, particularly during dry periods. Water deeply to ensure the soil remains moist but not waterlogged. Avoid letting the plant sit in standing water.

Light Needs

Thrives in full sun to partial shade. It can tolerate up to 4-6 hours of direct sunlight per day but will also do well in light shade, making it adaptable to various garden conditions.

Harvesting

Since 'Green Gem' is primarily grown for its foliage, no significant harvesting is required. Focus on regular pruning to shape and maintain the plant.

Fertilizing

Fertilize 'Green Gem' in early spring with a balanced, slow-release fertilizer. Avoid over-fertilizing, as this can lead to excessive growth or diminished color. A light application once a year is generally sufficient.

Additional Care Tips
  • Mulching: Apply mulch around the base of the plant to help retain soil moisture, regulate temperature, and suppress weeds.
  • Winter Care: 'Green Gem' is hardy but may benefit from winter mulch in colder climates to protect roots from extreme frost. In harsh winter conditions, consider protecting the plant from strong winds and desiccating cold.
Pollination
  • Pollination Type: Monoecious – both male and female flowers appear on the same plant
  • Flower Description: Tiny, greenish-yellow blooms
  • Bloom time: Early spring
  • Not showy, often unnoticed
  • Pollination Method: Primarily wind-pollinated
  • Pollinator Interest: Low – not a significant nectar or pollen source

Companion Plants

Flowering Companions

  • Hydrangea paniculata ‘Little Lime’ – Adds height and blooms above boxwood formality
  • Rosa ‘Iceberg’ – Crisp white roses pair well with the lush evergreen foliage
  • Nepeta ‘Walker’s Low’ – Cascading lavender-blue blooms soften boxwood edges
  • Salvia nemorosa – Bold color contrast with vertical structure

Foliage & Texture Companions

  • Heuchera ‘Obsidian’ or ‘Lime Marmalade’ – Adds bold foliage contrast at the base
  • Carex ‘Evergold’ – Arching, variegated grass complements Green Gem’s dense shape
  • Ilex crenata ‘Sky Pencil’ – Offers vertical contrast to the rounded form
  • Hosta varieties – Broadleaf companions in part-shade settings

Flowering and Seasonality
  • Flowering Season: 'Green Gem' produces small, inconspicuous flowers in early spring (March to April), but they are not significant in terms of ornamental value.
  • Seasonality: As an evergreen shrub, 'Green Gem' maintains its lush green foliage throughout the year, providing consistent color and structure in your garden.

The flowers are small, greenish-yellow, and not particularly showy. They appear in early spring but are largely overshadowed by the plant’s attractive foliage.

Planting Instructions

  • Planting Season: Best planted in spring or fall. This timing allows the plant to establish its roots before the onset of extreme weather conditions.
  • Soil Requirements: Prefers well-drained soil with moderate fertility. It can tolerate a range of soil types but thrives in well-drained conditions.
  • Spacing: Space plants 2-3 feet apart to accommodate their mature size and ensure proper air circulation.

Planting Instructions:

  1. Dig a hole that is twice as wide and as deep as the root ball.
  2. Amend the soil with organic matter to improve drainage and fertility if needed.
  3. Place the plant at the same level it was growing in the pot, and backfill with soil.
  4. Water thoroughly and apply mulch around the base to retain moisture and suppress weeds.

Care Tips

  • Mulching: Apply mulch around the base of the plant to help retain soil moisture, regulate temperature, and suppress weeds.
  • Winter Care: 'Green Gem' is hardy but may benefit from winter mulch in colder climates to protect roots from extreme frost. In harsh winter conditions, consider protecting the plant from strong winds and desiccating cold.