Graaf van Vlaanderen · CC BY-SA 4.0
Sitka spruce
Tree·Picea sitchensis
Full sun
Sun
High
Water
Moist soil
Drainage
Zones 6–9
Hardiness
Sitka spruce (Picea sitchensis) is a tree. It grows best in full sun and has high water needs.
Through the year
GrowingFloweringFruiting
Works well with
from wiki dataNo companions recorded.
WHAT IT NEEDS
Wants full sun
Needs a lot of water
Tolerates moist soil, as long as it drains well
Prefers soil pH 4–6
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Prefers loam, sandy loam soil
Struggles in compacted soil
Adds a lot of organic matter to the soil
Partners with mycorrhizal fungi to boost nutrient uptake
WHAT IT GIVES
Gives shade (dense)
Gives wind shelter (high)
Gives leaf litter (acidifying)
Gives habitat (wildlife habitat)
Shelters birds
Shelters mammals
HOW IT GROWS
SIZE & SPACING
Canopy tree
Height5000–8000 cm
Spacing1000 cm (min 500 cm)
Root depthDeep
Width1000–2000 cm
Width figures are rough estimates, the most variable measurement in our data.
AI estimate · accuracy improves as growers contribute corrections.
HOW TO PROPAGATE
Propagate by seed
Difficulty
Establishes in about 5 yr
Self-seeds readily on its own
Where this comes from
Parsed4 Oct 2026
ConfidenceNot recorded
Photograph Graaf van Vlaanderen · CC BY-SA 4.0