Picea pungens f. glauca – Blue spruce, Colorado spruce

View prices and availability
  2. trees
  3. Picea pungens f. glauca
Pinaceae

Picea pungens f. glauca – Blue spruce, Colorado spruce

View prices and availability
Large tree with a pyramidal growth habit and dense, very regular branching. The bark is grey-brown, later deeply grooved. The young twigs are yellowish brown to orange-brown and go well with the blue-grey needles. These are stiff and spiky, 2 - 3 cm long. The long cylindrical cones are green first, turning yellowish brown when ripening. The forma (f.) glauca is the more or less ‘blue-grey needled’ form of P. pungens. Because it occurs in nature and reproduces by seeding, it is naturally quite varied. In culture, the tree is usually propagated vegetatively which means there is one clone. The tree has few demands as to soil provided it is adequately moist. A very useful conifer due to its high tolerance to dry air. Good wind tolerance.
Availability
High (3)
Specifications
Download PDF
Height
30 - 40 m
Width
9-12m
Crown
pyramidal, half-open crown
Bark and branches
twigs yellowish brown, bark grey-brown and deeply grooved
Leaf
stiff, prickly needles, blue-grey, 2 - 3 cm, evergreen
Flowers
inconspicuous
Fruits
pendent cylindrical cones, 4 - 10 cm long
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
any, provided it is moist enough, preferably not too acidic
Soil moisture
suitable for dry soil
Paving
tolerates no paving
Winter hardiness zone
4 (-34,4 to -28,9 °C)
Wind resistance
good
Other resistances
resistant to frost (WH 1 - 6), can withstand wind
Fauna tree
provides food for birds
Application
tree containers, roof gardens, industrial areas
Shape
clearstem tree, clearstem conifer, specimen conifer
Origin
Western USA
Clear stem conifer Clear stem tree Specimen conifer acid soil calcareous soil clay soil loamy soil sandy soil tolerates no paving light-loving resistant to frost (WH 1 - 6) suitable for shadow suitable for dry soil can withstand wind broad conical 1st size , taller than 12 metres half-open crown bluegreen greygreen average growing provides food for birds non-toxic (usually) Ornamental fruit
Frequently asked questions
Picea pungens f. glauca

Picea pungens f. glauca can eventually reach a height of 30 - 40 m, depending on the site and climate conditions.

Picea pungens f. glauca is average growing and can eventually reach a height of 30 - 40 m, depending on the site and climate conditions.

The right time to plant Picea pungens f. glauca is during the dormancy period. In Western Europe, Picea pungens f. glauca with root balls can generally be planted from mid-November to late April, although this depends strongly on the climatic conditions and the species of tree.

Picea pungens f. glauca blooms in may.
General