Colorado Blue Spruce
Picea pungens var. glauca
Pinaceae · coniferous tree · native
Last updated
Data Coverage 3 of 6 dimensions
Quick Facts
Height
10–15 ft
Growth Rate
Slow
Light
Sun to Part Shade
Soil
Well Drained
Water
Moderate
Hardiness
Zone Zones 3a–8b
Bloom Time
Non-flowering
Origin
the Rocky Mountains, Colorado, Wyoming to New Mexico
Phenological Calendar
| Stage | Typical Window |
|---|---|
| New growth flush BBCH 11 | Feb 15-Mar 15 |
| Bloom start BBCH 61 | May 1-May 31 |
| Bloom end / petal fall BBCH 69 | May 15-Jun 15 |
| Fruit/seed development BBCH 71 | Jun 1-Aug 31 |
| Fruit/seed maturity BBCH 85 | Sep 1-Nov 30 |
Diseases (16)
Thekopsora minima and Naohidemyces vaccinii Rust Nothophaeocryptopus gaeumannii Rhizosphaera Needle Cast abiotic (spray oil residue) Oil Discoloration Of Foliage Botrytis cinerea Botrytis Blight Abiotic or viral Bud Failure Cylindrocarpon spp. (now Ilyonectria spp.) Cylindrocarpon Root Rot Cytospora canker Cytospora Canker Several soilborne Damping-off Many conifers Drought Injury Heterobasidion annosum Heterobasidion Root Disease [VERIFY] Needle Distortion Phytophthora spp. (P Phytophthora Root Rot Phaeolus schweinitzii Schweinitzii root and butt rot Sparassis crispa (syn. S Sparassis Root Rot Stem decay Stem Decay Diaporthe vaccinii or Diplodia tip blight agents Tip Blight
Pests (15)
Elatobium abietinum Spruce aphid Pissodes strobi White pine weevil Oligonychus ununguis Spruce spider mite Coleotechnites piceaella Spruce needleminer Choristoneura fumiferana Spruce budworm Physokermes piceae Spruce bud scale Chionaspis pinifoliae Pine needle scale Orgyia pseudotsugata Douglas-fir tussock moth Adelges cooleyi Cooley spruce gall adelgid Dioryctria spp. Coneworm Cacoecimorpha pronubana Carnation tortrix Hemiberlesia ithacae Hemlock scale Lophocampa argentata Silverspotted tiger moth Cephalcia spp. Western webspinning sawfly Webworm