Garden Care Guide

Purple Willow Care

Salix purpurea

A native willow shrub that loves moist soils, grown for its slender stems that are purplish when young and its bluish-green leaves. To get the best stem color it is pruned hard (coppicing) at the end of every winter.

Hardy · -35 °C / -31 °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
  • Pruning: Preparation for the main pruning season can begin toward the end of the month.
  • Plant protection: Apply dormant mineral oil if needed.
  • General care: The colorful branches are decorative in winter.
  • Pests & diseases: Look for signs of canker on the trunk and branches.
February
  • Fertilizing: After pruning, a balanced NPK fertilizer or compost can be applied; do not overapply.
  • Pruning: While dormant, remove dry, broken, crossing and inward-growing branches so that air and light reach the inside of the crown.
  • General care: Pruned branches can be used as cuttings or used in basketry.
  • Frost risk: Protect newly planted seedlings from severe frosts.
March
  • Watering: If the soil begins to dry, water abundantly (20-30 L/week); water is important for new shoots; reduce if there is rain.
  • Fertilizing: If it was not done in February, do it now; do not overapply.
  • Plant protection: Check the new shoots for aphids.
  • General care: After hard pruning, many new, colorful shoots grow quickly from the base.
April
  • Watering: If there is no rainfall, water 1-2 times a week.
  • 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: It grows fast.
  • 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: Water 2-3 times a week. Water around the roots to a depth of 15-20 cm.
  • 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 the undersides of the leaves for orange-brown pustules (rust).
June
  • Watering: Water deeply 3-4 times a week, early in the morning. Water around the roots to a depth of 15-20 cm. Frequent shallow watering pulls the roots to the surface.
  • 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: Keep the soil cool and moist by mulching the root zone.
  • 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 the undersides of the leaves for orange-brown pustules (rust).
July
  • Watering: Water deeply 3-4 times a week, early in the morning. Water around the roots to a depth of 15-20 cm. Frequent shallow watering pulls the roots to the surface.
  • Plant protection: Continue checking for spider mites.
  • General care: Growth continues.
  • Pests & diseases: Watch for signs of water stress.
August
  • Watering: Water deeply 3-4 times a week, early in the morning. Water around the roots to a depth of 15-20 cm. Frequent shallow watering pulls the roots to the surface.
  • Plant protection: Continue checking for spider mites.
  • General care: Growth continues.
  • Pests & diseases: Watch for signs of water stress.
September
  • Watering: Water 2-3 times a week. Water around the roots to a depth of 15-20 cm.
  • 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: Preparing for dormancy.
  • Pests & diseases: Check the undersides of the leaves for orange-brown pustules (rust).
October
  • Watering: If there is no rainfall, water 1-2 times a week.
  • General care: Its leaves turn yellow. Clear the fallen leaves.
November
  • Watering: If the winter rains start, stop watering completely.
  • Plant protection: Apply a copper-based preparation after leaf fall to prevent diseases.
  • General care: Collect fallen leaves; many disease agents and pests overwinter under leaves.
  • Frost risk: Protect newly planted seedlings during the first winter.
December
  • Pruning: Get ready for pruning. Colored stems create a decorative effect throughout the winter.

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.

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