Dwarf Spreading Colorado Blue Spruce
A Low Spreading Blue Spruce for Minnesota Foundation Beds
Dwarf Spreading Colorado Blue Spruce (Picea pungens 'Procumbens' or similar) is a low ground-hugging blue spruce, mature 1–2 ft tall by 5–6 ft wide. Reliable to -40°F. Striking silvery-blue color in a horizontal spreading form — perfect for low foundation accents and rock gardens.
Dwarf Spreading Colorado Blue Spruce Plant Details
| Attribute | Detail |
|---|---|
| Scientific Name | Picea pungens 'Procumbens' |
| Common Names | Dwarf Spreading Colorado Blue Spruce |
| Mature Height | 1–2 feet |
| Mature Width | 5–6 feet |
| Growth Rate | Slow — 4–6 inches per year |
| Sun | Full sun (6+ hours) |
| Water | Moderate. |
| USDA Zones | 3–7 (Twin Cities is zone 4b–5a) |
| Soil | Tolerates Minnesota clay-loam. |
| Foliage | Evergreen — silvery-blue needles in low spreading horizontal habit |
| Winter Hardiness | Reliable to -40°F. |
| Deer Resistance | Generally deer-resistant. |
| Native Status | Colorado Rocky Mountains species; spreading-form selection |
Dwarf Spreading Colorado Blue Spruce Uses in Minnesota Landscapes
Foundation Front Row
Dwarf Spreading's low height keeps it under windows and at the front of foundation beds where taller blue spruces would overgrow.
Slope and Bank Plantings
Low horizontal habit makes it useful on banks and rocky slopes where the spreading form holds soil.
Best Time to Plant Dwarf Spreading Colorado Blue Spruce in Minnesota
Fall — late August through mid-September — is the ideal planting window for evergreens like Dwarf Spreading Colorado Blue Spruce. Soil is still warm enough for root development, cool air reduces transplant shock, and the plant gets 6–8 weeks to establish roots before the typical mid-November ground freeze in the Twin Cities. The earlier window matters specifically for evergreens because they continue losing moisture through their needles all winter, so root establishment before freeze is critical.
Spring (late April through May, after ground thaw) is the second-best window — you get a full growing season ahead. Avoid summer planting (June–August) when possible; if you must, water heavily and mulch deeply. Never plant after mid-October or before late April, when frozen ground or frost-heaving will kill new roots.
How to Plant Dwarf Spreading Colorado Blue Spruce
- Dig wide, not deep — 2–3x the root ball width, same depth. In heavy clay, dig even wider (3–4x).
- Check for clay hardpan — if water pools in the hole, break through the clay layer or mound-plant 2–3 inches above grade to improve drainage.
- Backfill with native soil mixed with 20–30% compost. Don't fill the hole with pure compost — it creates a "container" effect that traps water around the roots.
- Spacing — 5 feet apart for continuous spreading row; 6+ feet for individual specimens.
- Build a 3–4 inch water basin around the plant to direct water to the roots. Flatten or remove the basin in late October to prevent ice damage over winter.
- Mulch with 2–3 inches of shredded bark or wood chip mulch, kept 2 inches away from the trunk. Do NOT use gravel mulch — it doesn't insulate roots in Minnesota winters.
Watering Dwarf Spreading Colorado Blue Spruce in Minnesota
First Year Watering Schedule
- Weeks 1–2: Every 1–2 days, deep and slow (15–25 minutes)
- Month 1–2: Every 3–4 days
- Month 3–6: Every 5–7 days during active growth; less if rainfall is adequate (Minnesota averages roughly 3 inches/month June–August)
- Stop watering 2–3 weeks before ground freeze (typically late October in Twin Cities metro). Continued late-fall watering can push tender new growth that gets killed by winter.
- One deep watering in early December is a good idea for evergreens if fall has been dry — it helps the plant resist winter desiccation.
After Year One
- Established Dwarf Spreading Colorado Blue Spruce rarely needs supplemental water. Water deeply during droughts (2+ weeks of no rain combined with temps above 80°F).
- Soak to 6–8 inches depth, every 7–14 days during dry spells. Let natural rainfall do the rest.
Drip Irrigation in Minnesota
Drip works well for Dwarf Spreading Colorado Blue Spruce if your beds already have a system. Place emitters 12–18 inches from the trunk. Always blow out lines and shut off the timer by early October — frozen drip lines split.
Will Dwarf Spreading survive a Minnesota winter?
Yes — rated to USDA zone 3.
How is it different from regular Colorado Blue Spruce?
It has the same silvery-blue color but stays low (1–2 ft) and spreads horizontally (5–6 ft wide) rather than growing as a 50-foot tree.
You May Also Like
- Hetz Midget Arborvitae — Dark green dwarf globe contrasts the spreading blue.
- Karl Foerster Grass — Vertical golden grass complements the horizontal blue.
How Many Dwarf Spreading Colorado Blue Spruce Do I Need?
Each plant carpets 5–6 feet of ground at knee height, so a few go a long way. Use the 5-foot spacing the planting guide above recommends for a continuous silvery-blue front row.
| Bed / bank length | Plants needed (5 ft spacing) |
|---|---|
| 10 feet | 2 plants |
| 20 feet | 4 plants |
| 30 feet | 6 plants |
| 40 feet | 8 plants |
As a single rock-garden or foundation accent, give it a 6-foot pocket and let the horizontal branches drape — one specimen reads as a waterfall of blue.
Dwarf Spreading Colorado Blue Spruce Season-by-Season in Minnesota
- Spring: Bright silvery-blue new growth pushes along every horizontal branch in May — the freshest color of the year.
- Summer: A cool blue carpet barely 1–2 feet tall, staying put under windows while taller shrubs need trimming.
- Fall: Needles hold their silver-blue as the bed empties around it; one December deep-watering in a dry fall keeps needles plump for winter.
- Winter: Low blue branches catch and hold snow in sculptural drifts — hardy to -40°F, no protection needed.
At a Glance
✔ Deer-Resistant ✔ Evergreen ✔ Four-Season Interest
Plant It With
- Hetz Midget Arborvitae — the body's own pick: a dark-green dwarf globe to contrast the spreading blue.
- Karl Foerster Feather Reed Grass — vertical golden plumes over the horizontal blue carpet.
- Globe Blue Spruce — a rounded blue dome to step the bed up in height behind it.
- Dwarf Japanese Garden Juniper — an even lower green mat for layering textures on the same bank.
Is Dwarf Spreading Colorado Blue Spruce Right for Your Yard?
Choose it if you want true blue-spruce color that never blocks a window — the front of a full-sun foundation bed, a rocky slope, or draping over a retaining wall in well-drained soil. Deer generally pass it by. It's not a fit for shade or poorly drained spots — the blue color fades without full sun, and like all Colorado spruce it sulks in soggy clay. Plant it high and dry and let it spread.