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Tree · Pinaceae family

Picea glauca

Picea glauca

Full sun to part shade in a garden 1–3 m × 0.5–1.5 m to −46 °C

In short a 10-second read

SunFull sun to part shade
in a garden after 10 years1–3 m
in the wild up to 18 m
spacing 4 m
PlantingMarch–April, September–October
WinterNo winter protection

Where to plant and how much to water

Sun, soil and water.

It grows best in full sun to part shade, in average to moist soil.

Sun

Sun6 hours or more
Part shade3–6 hours
Shadeunder 3 h

Soil

tolerates any pH
acidicneutralalkaline
average to moistloamyhumus-richsandy

Watering

only in dry spellsless when it rains

Frost

−46 °C
no winter protectiongreen in winter too

How much space it takes

Mature size.

The mature plant next to a person (175 cm).

1 m2 m3 m4 m5 m6 m7 m8 m9 m10 m11 m12 m13 m14 m15 m16 m17 m18 m12–18 mspread 4–6 m
12–18 m× spread 4–6 m

Plant 4 m apart.

Reaches maturity in about 20–50 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.

Calendar

Through the year.

Months for Central Europe. The line shows the current month.

The year at a glance

Planting: JanuaryPlanting: FebruaryPlanting: MarchPlanting: AprilPlanting: MayPlanting: JunePlanting: JulyPlanting: AugustPlanting: SeptemberPlanting: OctoberPlanting: NovemberPlanting: DecemberFeeding: JanuaryFeeding: FebruaryFeeding: MarchFeeding: AprilFeeding: MayFeeding: JuneFeeding: JulyFeeding: AugustFeeding: SeptemberFeeding: OctoberFeeding: NovemberFeeding: DecemberProtection: JanuaryProtection: FebruaryProtection: MarchProtection: AprilProtection: MayProtection: JuneProtection: JulyProtection: AugustProtection: SeptemberProtection: OctoberProtection: NovemberProtection: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
PlantingFeedingProtection
Now, in October: a good time for planting (container plant, root-balled).
JanFebMarAprMayJunJulAugSepOctNovDec

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: March–April, September–October; root-balled: March–April, September–October

Feeding

JanFebMarAprMayJunJulAugSepOctNovDec

May–June

Protection

JanFebMarAprMayJunJulAugSepOctNovDec

April (spraying): In early April, oil or soap against overwintering stages of scale insects and mites (genus).

Feeding

Nutrition.

Horn meal

up to 55 g/m² a year, if the soil needs it · May–June

JanFebMarAprMayJunJulAugSepOctNovDec

Pests and diseases

Common problems and what to do.

The most common problems in Central Europe. Protection is listed from the gentlest option.

High riskMedium riskLow riskRisk for this plant according to the source · no label = no documented level

Softwood needle rust

Low riskdisease

What you will see

White blisters on fresh needles that burst and release rusty spores.

The source says: needle rusts may attack softwood but are usually not serious.

How to protect

  1. By handIn a severe outbreak, remove nearby alternate host plants.
Softwood needle rustdiseaseLow risk

What you will see

White blisters on fresh needles that burst and release rusty spores.

The source says: needle rusts may attack softwood but are usually not serious.

How to protect

  1. By handIn a severe outbreak, remove nearby alternate host plants.

What you will see

Needles are faded, greyish to rusty brown, and laced with fine webbing.

How to protect

  1. Prevention
    • Water the tree sufficiently; wash mites off the leaves/needles with a strong jet of water.
  2. BiologicalSpare predatory mites and other natural enemies; do not use broad-spectrum insecticides.
  3. Gentle spray winter dormancy; in season as neededUltra-fine horticultural oil in winter dormancy against overwintering eggs; in season, oil at a low concentration spares predatory mites.
Softwood spider mitepest

What you will see

Needles are faded, greyish to rusty brown, and laced with fine webbing.

How to protect

  1. Prevention
    • Water the tree sufficiently; wash mites off the leaves/needles with a strong jet of water.
  2. BiologicalSpare predatory mites and other natural enemies; do not use broad-spectrum insecticides.
  3. Gentle spray winter dormancy; in season as neededUltra-fine horticultural oil in winter dormancy against overwintering eggs; in season, oil at a low concentration spares predatory mites.
More about this problem
Sources (3)

Frequently asked

Quick answers.

Does Picea glauca tolerate shade?

It tolerates part shade (3–6 hours of sun), but not full shade.

How much space does Picea glauca need?

At maturity 4–6 m wide and 12–18 m tall; recommended spacing 4 m.

Softwood spider mite — what can you do?

Water the tree sufficiently; wash mites off the leaves/needles with a strong jet of water. Spare predatory mites and other natural enemies; do not use broad-spectrum insecticides.

Softwood needle rust — what can you do?

In a severe outbreak, remove nearby alternate host plants.

Sources (13) Checked 24 October 2026

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