Pachysandra

Pachysandra terminalis

Engels: Japanese Spurge

groundcoverBuxaceaeWintergroen

Pachysandra (Pachysandra terminalis) is a evergreen ground cover from the Buxaceae family that grows up to 30cm tall. This plant thrives in partial shade to shade and requires low maintenance. Blooms in spring with white flowers.

Hoogte

15–30 cm

Breedte

60–150 cm

Zonligging

partial shade, full shade

Waterbehoefte

moderate

Grondsoort

loam, peat soil

Onderhoud

low maintenance

Bloeitijd

spring

Bloemkleuren

white

Verzorgingskalender

Taak	Jan	Feb	Mrt	Apr	Mei	Jun	Jul	Aug	Sep	Okt	Nov	Dec
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Care tips

Planting

Japanese spurge is an evergreen groundcover that thrives in shaded areas where many other plants struggle. Plant it in partial or full shade; it will scorch in direct sun and perform poorly in bright, exposed positions. The ideal soil is moisture-retentive loam or peat-based soil with good organic content. Avoid dry, sandy ground or heavy clay that stays waterlogged. The best planting times are March to May or September to October, when the soil is workable and temperatures are moderate. Prepare the ground by removing weeds and digging in garden compost or well-rotted manure to improve moisture retention. Rake the surface level before planting. Set plants 25 cm apart in staggered rows to encourage quick coverage. Dig a hole slightly larger than the root ball, place the plant so the top of the root ball sits level with the surrounding soil, and firm in gently. Planting too deep can lead to stem rot, especially in heavy soils. Water thoroughly immediately after planting to settle the roots and eliminate air pockets. Keep the soil consistently moist for the first growing season while the plants establish. A 5 cm layer of leaf mould or composted bark mulch around the plants helps retain moisture, suppress weeds, and gradually improves soil structure. Avoid piling mulch against the stems. Japanese spurge spreads slowly by rhizomes, so patience is needed in the first year or two. Once established, it forms a dense, weed-suppressing mat 15 to 30 cm tall. It tolerates dry shade under trees once mature, making it an excellent low-maintenance solution for difficult spots.

Pruning

Japanese spurge requires no routine pruning. It naturally forms a neat, low carpet and maintains its shape without intervention, which is one of its chief attractions as a groundcover. There are no specific pruning months for this plant, and attempting to prune it in the traditional sense can do more harm than good by creating bare patches that are slow to fill in. That said, occasional tidying keeps the planting looking its best. In early spring, before new growth begins, walk through the patch and remove any dead, browned, or winter-damaged stems by cutting them back to ground level with secateurs or simply pulling them away. This is particularly worthwhile after a harsh winter, though Japanese spurge is hardy to zone 4a and rarely suffers significant damage in temperate European climates. If the planting becomes straggly, uneven, or develops bare patches over time, you can rejuvenate it by cutting back the entire area to about 5–8 cm above ground level in early spring. Use shears or a strimmer set high. The plants will regrow vigorously from the base, though it may take a season to return to full coverage. This drastic approach is rarely necessary if the site conditions are right. Keep edges neat by trimming back any stems that creep beyond their intended boundary. Use edging shears or a sharp spade to slice through the shallow rhizomes. Japanese spurge is not invasive, but it will slowly colonise adjacent ground if left unchecked. Remove any seedlings of other plants that appear within the mat, as competition can weaken coverage. The small white spring flowers are insignificant and fade naturally; deadheading is unnecessary and impractical given the plant's low, dense habit.

Maintenance

Japanese spurge is a low-maintenance groundcover once established, but attention to watering and feeding in the early years ensures healthy, dense coverage. Water regularly during the first growing season, especially in dry spells, to help roots establish. Thereafter, water during prolonged summer drought, particularly if planted under trees where competition for moisture is high. The soil should remain evenly moist but never waterlogged; soggy conditions encourage root and stem rot. Feed once a year in April with a balanced slow-release fertiliser such as blood, fish and bone or a general-purpose granular feed (e.g. Growmore) scattered lightly over the foliage. Water in if rain isn't forecast. Avoid high-nitrogen feeds, which promote soft growth prone to disease. A spring mulch of leaf mould or composted bark also provides gentle, ongoing nutrition and helps retain moisture through summer. Japanese spurge is evergreen and fully hardy in zones 4a to 8b, so no special winter protection is needed. The foliage may bronze slightly in very cold or exposed sites but greens up again in spring. If snow or ice flattens the plants, they usually recover without intervention once conditions improve. Pests are rare. The main issue is Volutella blight, a fungal disease that causes stems and leaves to turn brown and die back, often in patches. It's more common in overcrowded, poorly ventilated plantings or where foliage stays wet. Remove and bin affected stems promptly; do not compost them. Improve air circulation and avoid overhead watering. Scale insects occasionally appear on stems; treat with a horticultural soap if numbers build up. Replenish mulch every two to three years to suppress weeds and maintain soil quality. Japanese spurge is shade-tolerant and competes well once mature, but young plantings benefit from regular weeding until coverage is complete.