Blue spruce vs Serbian spruce

Blue spruce and Serbian spruce are often considered for the same spot in the garden (specimen, screening). The data below shows where they differ: size, hardiness, care, toxicity and price.

Blue spruce

Picea pungens 3 m × 1.5 m after 10 years

A formal, conical spruce with stiff, silvery-blue needles and branches down to the ground; in time it reaches 15 to 20 metres tall and 4 to 6 metres…

Large tree

Full sun

Part shade

from about PLN 2.10

Serbian spruce

Picea omorika 4 m × 1.5 m after 10 years

A slim, spire-like spruce with short, drooping branches that turn up at the tips and needles that are silvery underneath; it takes little room for its…

Large tree

Full sun

Part shade

from about PLN 4

Key differences

Blue spruce: We do not recommend it for most Central European gardens. In Central Europe the hot, dry summers of recent years hit it hard: large blue spruces are dying in gardens and parks, because the shallow-rooted, weakened trees are attacked by bark beetles, and an infested tree cannot be saved.
Serbian spruce grows larger: 4 m × 1.5 m after ten years, against 3 m × 1.5 m for Blue spruce (an estimate: sources differ).
Serbian spruce copes better with summer heat than Blue spruce.
Serbian spruce needs less care than Blue spruce.

Which one to choose?

Serbian spruce is the safer choice: we do not recommend planting Blue spruce in most gardens.

Watch out for

Blue spruce

In Central Europe the hot, dry summers of recent years hit it hard: large blue spruces are dying in gardens and parks, because the shallow-rooted, weakened trees are attacked by bark beetles, and an infested tree cannot be saved. In dry, warm spots spider mites speckle the needles yellow and make them drop, and the green spruce aphid (Elatobium abietinum), mainly after mild winters, browns the older needles in spring from the inside out and from the bottom up. Rhizosphaera needle cast and Cytospora canker also start on the lower branches, so the tree goes bare from below and the lost branches do not grow back. Plant a new tree only where you can give it deep summer watering and a mulch, and avoid hot, paved, airless spots.

Serbian spruce

Its best-known problem is the so-called omorika dieback: needles turn brown from the shoot tips and drop. It is not an infection but a physiological disorder triggered by magnesium deficiency, chloride building up in the soil (road salt, for example), compacted soil and weather extremes; a magnesium feed instead of potassium-rich fertiliser, loose soil and even watering prevent it, and it should not be planted next to salted roads or paths. In the hot, dry summers of Central Europe spider mites can turn the needles dull and greyish brown, and the green spruce aphid can make the older, inner needles drop. On heavy, airless soil root and butt rot fungi (Heterobasidion, honey fungus) may attack. It is somewhat less tolerant of polluted air than its reputation suggests, and it suffers both in prolonged drought and in waterlogged ground.

The data side by side

Feature	Blue spruce	Serbian spruce
Group	Large tree	Large tree
Size after 10 years	3 m × 1.5 m (uncertain)	4 m × 1.5 m (uncertain)
Ultimate size	9–20 m × 3–6 m	15–25 m × 3–7.5 m
Growth rate	Medium	Medium (uncertain)
Light	Full sun, Part shade	Full sun, Part shade
Soil	Average garden soil, Clay, Sandy, Calcareous, Acidic	Average garden soil, Clay, Sandy, Acidic, Calcareous
Hardiness	down to -40 °C (USDA 3, RHS H7)	down to -34 °C (USDA 4, RHS H7)
Heat tolerance	Low	Medium
Foliage	Evergreen	Evergreen
Water need	Medium	Medium
Drought tolerance	Medium	Medium
Maintenance	Medium	Low
Planting distance	500 cm	400 cm
For children	no data	Non-toxic (uncertain)
Typical price	about PLN 7.30 (< 40 cm)	about PLN 4 (< 40 cm)

Prices are rounded, indicative values. Toxicity data is for information only. If your pet or child has eaten a plant, contact a vet or a doctor. Data updated: October 17, 2026

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