How to grow japanese laurel
Overview
Japanese laurel (Aucuba japonica) is a dense, evergreen shrub grown for its bold, glossy leaves and ability to thrive in deep shade. It is valued as a reliable filler that links feature plants and provides year-round structure in low-light garden areas.
Varieties
- Aucuba japonica 'Variegata' — Gold-speckled leaves that brighten dark corners; popular in Australian gardens.
- Aucuba japonica 'Crotonifolia' — Heavy gold variegation with large leaves; a standout for bold contrast.
- Aucuba japonica 'Rozannie' — Compact, self-fertile form with dark green leaves; ideal for small spaces.
Soil Preparation
Japanese laurel prefers slightly acidic to neutral soil (pH 5.5–7.0) that is rich in organic matter and well-drained. Before planting, incorporate well-rotted compost or aged manure into the top 30 cm of soil. If drainage is poor, plant in a raised bed or mound to avoid waterlogging.
Growing Guide
Plant Japanese laurel in a position with bright, indirect light or dappled shade, avoiding harsh afternoon sun. Space plants 1–1.5 m apart to allow for their eventual spread. Prepare soil with plenty of organic matter and ensure good drainage; dig a hole twice the width of the root ball and backfill with enriched soil. Water in well after planting and maintain consistent moisture during the first year. In cooler zones, plant in spring after frost risk passes; in warmer zones, autumn planting allows roots to establish before summer heat.
Care
Feed in early spring with a balanced slow-release fertiliser (e.g., 10-10-10) at the rate recommended for shrubs. Prune lightly after flowering to shape and remove any frost-damaged or dead wood. Keep a 5–10 cm layer of organic mulch around the root zone, but pull it back from the stem to prevent rot.
Companion Planting
Japanese laurel pairs well with other shade-tolerant shrubs such as Camellia, Rhododendron, and Hydrangea, and with groundcovers like Liriope or Bergenia. Avoid planting near heavy feeders like large trees that compete for moisture, or in full-sun positions where it will scorch.
Common Pests & Risks
Scale insects and leaf spot are the most common issues. Control scale with horticultural oil applied in early spring or autumn. For leaf spot, improve air circulation and avoid overhead watering; remove and dispose of affected leaves promptly.
Troubleshooting
Yellow leaves: often caused by too much sun or poor drainage. Move to shadier spot or improve soil. Brown leaf edges: usually from dry air or wind; increase humidity and shelter. Sparse growth: indicates insufficient light; prune back overhead canopy. Leaf drop: can be from overwatering or root rot; let soil dry between waterings. Scale on stems: treat with horticultural oil in early spring.