Folio № 33 of 36 · in the garden since 2022
Colorado Blue Spruce
Picea pungens
Bold foliage color and strong apical dominance; ideal for rugged styles but prone to coarse growth.
The year, as this species lives it
Thirteen phases. Touch any arc — the wheel remembers what each season asks.
Early Fall · Sep 1 – Sep 30 · happening now
- Reduce frequency slightly; avoid letting the rootball dry out.
- Cease fertilizing by mid-month to allow wood to harden.
- Only minor cleanup. Avoid stimulating new growth.
- Watch for late-season scale and fungal issues.
- Begin prepping overwintering location.
click another arc to travel the year →
The care sheet
The constants — what stays true in every season.
Full sun
Full sun enhances blue coloration.
Moderate
Allow slight drying between watering; avoid waterlogging.
Balanced
Avoid high nitrogen; encourages coarse growth.
Structural in spring, maintenance in summer
Thin regularly to allow light into interior.
Spring or Autumn
Wood is stiff; wire with care and in stages.
Every 2-4 years
Repot every 3 years to refresh soil and manage vigor.
Cuttings or seed
Best propagated from seed or grafted onto vigorous rootstock.
Protect from drying winds; foliage may discolor.
Tolerates heat but not drought; mulch in summer.
On the bench · 2
Every Colorado Blue Spruce in the garden, oldest hands first.
