Garden Care Guide

Japanese Privet Care

Ligustrum japonicum

A fast-growing, evergreen, extremely hardy hedge and screening plant. It responds very well to frequent pruning and takes shape easily; because its seeds are spread by birds, it can be invasive in some regions.

Hardy · -20 °C / -4 °F

Monthly care calendar

Timings are for a temperate Northern Hemisphere climate. In warmer areas tasks start earlier, in colder areas later; in the Southern Hemisphere shift them by six months.

January
  • Watering: Not required, natural rainfall is sufficient.
  • Plant protection: Applying dormant oil (mineral oil) against scale insects can be considered.
  • Pests & diseases: Check for scale insects on branches. No frost protection is needed.
February
  • Pruning: Before new growth begins is the best time to do hard pruning to rejuvenate the plant, reduce its size or shape it.
  • General care: Clear weeds.
March
  • Watering: Water a newly planted specimen more often than established plants during its first year, as its root system is still shallow.
  • Fertilizing: Apply a balanced fertilizer or well-rotted organic fertilizer once when it wakes from dormancy.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: Good time for planting and transplanting.
  • Pests & diseases: Check the branches and trunk for brown, fixed bumps (scale insects).
April
  • Watering: If there is no rainfall, water every 15 days. Water newly planted plants more often than established plants during the first year; the root system is still shallow.
  • Pruning: If grown as a hedge, do the first formative pruning.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: Good time for planting and transplanting.
  • Pests & diseases: Look for aphids (green or black clusters of small insects) on fresh shoot tips. If there are only a few, you can knock them off with a strong jet of water.
May
  • Watering: If there is no rainfall, water once a week.
  • Pruning: Continue pruning to maintain the shape.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: Spread a 5-7 cm layer of mulch over the root zone; it retains soil moisture and suppresses weeds. Do not pile mulch against the trunk.
  • Pests & diseases: Check fresh shoot tips for aphids (small clusters of green or black insects). If there are few, you can knock them off with a strong spray of water. Check branches and stems for brown, stationary bumps (scale insects).
June
  • Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. Water around the roots to a depth of 15-20 cm.
  • Pruning: Do shaping and hedge pruning. As a hedge, it needs pruning 2-3 times a season; keeping the bottom wider than the top prevents the lower branches from becoming bare.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: Flowering begins.
  • Pests & diseases: Look for aphids (green or black clusters of small insects) on fresh shoot tips. If there are only a few, you can knock them off with a strong jet of water.
July
  • Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. Water around the roots to a depth of 15-20 cm.
  • Pruning: A second pruning can be done on hedge plants to control growth through the summer.
  • Plant protection: Check for spider mites and whiteflies in hot weather.
  • General care: Flowering continues.
August
  • Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. Water around the roots to a depth of 15-20 cm.
September
  • Watering: If there is no rainfall, water once a week.
  • Pruning: Do the last formative pruning of the season; do not let it put out new shoots before frost.
October
  • Watering: If there is no rainfall, water every 15 days. Water newly planted plants more often than established plants during the first year; the root system is still shallow.
  • General care: Good time for planting and transplanting.
December
  • General care: Evergreen leaves continue to lose water in winter. Water thoroughly once before the soil freezes.

The care advice on this page is general and for information only; it is not professional advice. Plant age, soil and your garden’s microclimate can change the outcome. Plant protection products are mentioned only as general information; they are regulated, and the choice, dose and timing must be decided by a qualified professional under local rules. Consult a landscape architect or agronomist before applying.

Want reminders for every plant in your garden? Our garden-care app with monthly task lists and frost alerts is currently available in Turkish; the English version is on the way.

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