Sitka Spruce - Picea sitchensis

Description

The Sitka Spruce has a straight, tapering trunk and pointed crown. The bark is purple-grey, developing curved ridges and flaky plates with age. Twigs are light brown and hairless, and the long branches hang downwards. Needle-like leaves are straight, flattened and sharp, with two blue-white bands beneath and narrower lines on top. Male flowers are oval-shaped, blunt and pale yellow. Female flowers are red, upright and oval, and are rarely seen as they usually grow at the top of the tree. Pollinated by wind, female flowers develop into cylindrical, pale green cones, which ripen to a pale creamy-brown in autumn. The seeds within the cones are small and winged.

Similar Species

Norway Spruce, and various ornamental Picea that may be planted in parks and gardens. Similar to other Pinaceae species with needles borne singly, but Picea have needles on brown petiole-like pegs

Identification difficulty
ID checklist (your specimen should have all of these features)

Leaves flattened, two broad whitish stripes on underside; cones 6-10cm

Recording advice

Photos of cones and details of underside of leaves

Habitat

Usually found as a planted tree in woodland, parks or other plantations.

When to see it

All year round.

Life History

Coniferous evergreen tree.

UK Status

Introduced to Britain in 1831. Widespread in Britain though less so in eastern England. It is commonly seen growing in plantations, where it is harvested for its timber.

VC55 Status

Locally frequent in planted woodland areas of Leicestershire and Rutland. It was not recorded in the 1979 Flora survey of Leicestershire.

Leicestershire & Rutland Map

MAP KEY:

Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2025+ | 2020-2024 | pre-2020

UK Map

Species profile

Common names
Sitka Spruce
Species group:
Trees, Shrubs & Climbers
Kingdom:
Plantae
Order:
Pinales
Family:
Pinaceae
Records on NatureSpot:
7
First record:
13/09/2016 (Mathers, Steve)
Last record:
30/11/2019 (Lewis, Steven)

Total records by month

% of records within its species group

10km squares with records

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Latest images

Latest records

Photo of the association

Gilletteella cooleyi

The adelgid bug Gilletteella cooleyi causes a gall on the shoots of Spruce (Picea). The gall is elongated, often curved, and formed of the swollen bases of adjacent spruce needles fused to the shoot. The nymphs live inside chambers within the gall.  Unlike other adelgid galls on this host, the needles remain sticking out of the gall, although shorter than usual. 

Photo of the association

Greater Black Spruce Bark Aphid

The Greater Black Spruce Bark Aphid (Cinara piceae) is a strikingly large (4.5 to 6.7 mm), all-black aphid with partially red/brown legs (the distal end of tibia and femora are black). The thorax is glossy black whilst the abdomen is matt black. Alates (winged) have dark tinted wings. Large colonies of these aphids can appear on the undersides of older branches and on the trunks of Spruce.

Photo of the association

Elatobium abietinum

A pale to dark green aphid found on Spruce species (Picea) or on Silver Fir (Abies) needles. It is most commonly recorded on Sitka Spruce (Picea sitchensis).

Photo of the association

Pineapple Gall Adelgid

The Pineapple Gall Adelgid (Sacchiphantes abietis) produces galls on Spruce species.  The gall is ellipsoidal with its length less than 1.5 times the width and usually about 15 to 20 mm in length. The spruce needles on the gall are shorter than normal. The gall is only slightly paler green than a normal shoot. The slits to gall chambers are often orange-red or deep pink before opening. There are often several galls together at the base of adjacent shoots, and plant growth often continues beyond gall.