Planting Colorado Blue Spruce Seedlings: Spacing, Soil, and Watering

Mature Size Dictates Spacing

• Hedge: 3–5 ft apart.
• Specimens: 10 ft apart.

Mature: 35 ft tall × 15 ft wide.

Site Requirements

• Full to partial sun (no shade).
• Moist, nutrient-rich, well-drained soil.
• Hardy in Maine (zone 4–5).

Planting Procedure

1. Hole 2× pot width and depth.
2. Backfill with topsoil/potting mix.
3. Mulch 3 inches organic, not touching stem.

Watering Schedule

• 1 inch per week (pan test).
• Weekly through summer if no rain.
• Soil need not stay constantly wet—drainage is key.

Long-Term

Blue spruce (Picea pungens) is slow to establish but very long-lived. Protect from deer browse first few years.