Norway Spruce Care
Picea abies
An evergreen tree of pyramidal form native to cold and cool climates. It likes moist, cool, well-drained, acidic soil. It is not suitable for the hot, dry Mediterranean climate; under these conditions it becomes stressed and very susceptible to pests (especially bark beetles).
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.
- Watering: Not required; winter precipitation is sufficient.
- Pruning: Remove only dry, diseased or broken branches. It generally needs no pruning.
- General care: Dormancy period.
- Pruning: It does not need formative pruning and its top should not be cut. Only remove dry, broken, and diseased branches.
- General care: Rest period continues.
- Watering: If the soil begins to dry, 20-30 L/m² per week for young trees.
- Fertilizing: For acid-loving plants in acidic soil, apply slow-release fertilizer or compost at 30-50 g/m² of soil, and do not overapply.
- 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: New shoots (light green) begin to emerge. Spread mulch (such as pine bark) over the root zone to keep the soil cool and moist.
- Pests & diseases: Check the branches and trunk for brown, fixed bumps (scale insects).
- Frost risk: Young shoots may be damaged by severe late frosts.
- Watering: If there is no rainfall, water every 15 days.
- Plant protection: Start watching for spider mites (Tetranychidae).
- General care: Growth accelerates.
- Watering: If there is no rainfall, water once 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: 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 the branches and trunk for brown, fixed bumps (scale insects).
- Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. The root zone should be wetted to a depth of 30-40 cm.
- Pruning: Avoid pruning a tree under stress.
- Plant protection: The spider mite population increases in hot, dry weather.
- General care: It goes into stress if it is not in a place sheltered from hot winds.
- Pests & diseases: Trees under stress are a target for bark beetles (Scolytinae). Check the trunk for holes and resin flow.
- Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. The root zone should be wetted to a depth of 30-40 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: Pay particular attention to keeping it from entering water stress during the hottest period.
- Pests & diseases: In hot and dry weather, look on the undersides of the leaves for fine webbing and speckled yellowing (spider mites). Washing the leaves during the cool hours reduces their numbers.
- Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. The root zone should be wetted to a depth of 30-40 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.
- Pests & diseases: In hot and dry weather, look on the undersides of the leaves for fine webbing and speckled yellowing (spider mites). Washing the leaves during the cool hours reduces their numbers.
- Watering: If there is no rainfall, water once a week.
- Pruning: Not needed. Do not prune a stressed tree.
- Plant protection: Continue watching for spider mites (Tetranychidae) and bark beetles (Scolytinae).
- General care: Growth stops, and the plant begins to recover with the cool autumn weather.
- Pests & diseases: Holes in the trunk and sawdust-like powder are signs of bark beetle attack and are usually fatal.
- Watering: If there is no rainfall, water every 15 days.
- General care: The plant is preparing for winter. Keep the mulch layer in place.
- General care: Enters dormancy.
- 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.
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