My Trees > Colorado Blue Spruce 1

Estimated Origin: April 2005
Training Since: December 2022
Acquired: December 26, 2022
Progression: Pre-Bonsai

Picea pungens

Large blue spruce christmas tree

Provenance

Home Depot

July 14, 2025

Observation
June 12, 2025

Observation
June 6, 2025

Ground Plant

Planted it in the ground to allow it to strengthen/back bud/thicken
April 22, 2024

Observation
April 5, 2024

Observation
March 7, 2023

Observation
February 28, 2023

Repot

Moved to deeper pot for growth, relocated to backyard
February 26, 2023

Fertilize

Liquid fertilizer
January 8, 2023

Observation
December 30, 2022

Other – Contest entry

BonsaiNut Entered 5-year discount rack contest
December 29, 2022

Wire

Started training- heavy pruning, wiring, exposed nebari
December 29, 2022

Prune

Started training- heavy pruning, wiring, exposed nebari
December 27, 2022

Observation

Bold foliage color and strong apical dominance; ideal for rugged styles but prone to coarse growth.

Leaf Persistence: Evergreen
Leaf Form: Conifer
Watering: Moderate
Watering Notes: Allow slight drying between watering; avoid waterlogging.
Watering Season: Spring → Autumn
Fertilization: Balanced
Fertilization Notes: Avoid high nitrogen; encourages coarse growth.
Wiring: Spring or Autumn
Wiring Notes: Wood is stiff; wire with care and in stages.
Pruning: Structural in spring, maintenance in summer
Pruning Notes: Thin regularly to allow light into interior.
Repotting: Every 2-4 years
Repotting Notes: Repot every 3 years to refresh soil and manage vigor.
Propagation: Cuttings or seed
Propagation Notes: Best propagated from seed or grafted onto vigorous rootstock.
Zone 8b: Watch for spider mites (Jul-Aug); Prevent rot in wet Nov-Jan