Sprinter Boxwood (Buxus microphylla Sprinter)

Sprinter Boxwood

Buxus microphylla Sprinter

Compact evergreen foliage stays neat year-round, ideal for low hedges. Dwarf broadleaf shrub; common name: Sprinter Littleleaf Boxwood.

Full sun
1–2/week
Beginner
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Plant Needs

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Sunlight Bright indirect to full sun; tolerates partial shade, with 4–6 hours of daily direct sun promoting dense, uniform foliage growth
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Watering Water deeply when the top 2–3 cm of soil feels dry; avoid overwatering to prevent root rot in poorly drained soil
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Temperature Hardy to -15°C; provide light shade during extreme summer heat above 32°C to prevent leaf scorch
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Characteristics

  • Leaf: Small, oval, glossy dark green leaves; evergreen, retains color through winter
  • Flower: Inconspicuous pale yellow-green clusters; lightly fragrant when fully open
  • Stem: Slender woody stems with tight branching for dense, uniform growth
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Care Guide

Watering

Keep soil evenly moist during active growth; water during extended dry spells

Fertilization

Apply balanced slow-release fertilizer once monthly. Avoid fertilizing in late autumn to prevent new growth that may be damaged by winter frost

Eggshell powder topdress:Crush dried, rinsed eggshells into a fine powder; sprinkle lightly on the soil surface and water in to release calcium gradually without causing nutrient buildup
Pruning
  • Trim after flowering in early spring to maintain desired hedge shape or mounded form
  • Remove dead, diseased, or crossing branches to improve air circulation
  • Thin inner foliage annually to prevent fungal growth and maintain dense outer growth
  • Avoid heavy pruning in late autumn, as new growth may be damaged by winter frost
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; ingestion leads to gastrointestinal distress, lethargy, and potential neurological symptoms like tremors

Humans: Contains alkaloids; ingestion causes mild oral irritation, nausea, and vomiting if large quantities are consumed

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Garden Uses & Culture

Culture: Symbolizes formal garden structure and enduring greenery; commonly used in topiary and parterre designs

Usage: Low hedges, landscape edging, container plants, and small topiary specimens