Baby Blue Spruce

Baby Blue Spruce is hardy in USDA zones 2-7 and grows best in full to partial sun, with at least six hours of direct light for the densest growth and strongest blue color. Give it deep, well-draining soil; like most spruce, it dislikes soggy or compacted ground, so avoid low spots where water pools.

Planting

1. Choose a site with full to part sun and room for a tree that matures large; this is a long-lived specimen, so account for its eventual spread.
2. Make sure the soil drains well. On heavy clay, plant slightly high and amend with organic matter to improve drainage.
3. Dig the hole twice as wide as the root ball but no deeper, so the tree sits on firm, undisturbed soil and will not settle.
4. Set the root flare (where the trunk widens into the roots) at or just above grade. Never bury the flare or pile soil against the trunk.
5. Backfill with native soil, firm gently to remove air pockets, and water in deeply to settle the roots.
6. Apply a few inches of mulch over the root zone, pulling it back several inches from the trunk to keep the bark dry and discourage rot.
7. For a screen or windbreak row: because this spruce is a wide-growing tree, space plants roughly 12-15 ft apart on center for a solid evergreen buffer. For faster visual screening accept that the trees will eventually crowd at the base, or stagger two offset rows for depth.

Care & maintenance

• Water. Water deeply and regularly through the first one to two growing seasons while roots establish. Even mature spruce appreciate a deep soak during dry spells, including dry fall and winter periods, to prevent needle desiccation.
• Feed. Feeding is rarely required. If growth is sluggish, apply a light, slow-release evergreen or conifer fertilizer in early spring; avoid heavy feeding.
• Light. Full to part sun. The more direct light it receives, the denser the branching and the more intense the blue color.
• Prune. Spruce do not regenerate from bare, leafless old wood, so never cut back into brown interior branches. Shape only the green outer growth; light tip pruning in spring as new shoots emerge can tighten the form, but most trees need no pruning at all.
• Spacing. For a privacy or windbreak row, space plants about 12-15 ft apart on center given the tree's mature width.
• Pests & disease. Watch for spruce spider mites in hot, dry weather (look for stippled, fading needles and fine webbing) and for needle cast diseases that cause inner needles to brown and drop, especially on crowded or poorly drained trees. Good air circulation and proper spacing are the best prevention.
• Winter care. Generally very hardy and self-sufficient. In heavy-snow regions, gently brush snow off branches to prevent limbs from bending or breaking under the load.

How far apart should I plant them for a privacy screen?

Because the Baby Blue Spruce matures into a wide tree, space plants roughly 12-15 ft apart on center for a healthy, long-term screen or windbreak. Crowding them closer gives faster coverage early on but leads to bare, shaded lower branches as the trees compete. For more depth, plant two staggered rows rather than squeezing one tight row.

How fast does it grow?

This is a moderate grower, typically adding around a foot or so of height per year once established. It is not a fast-screening conifer, but you trade speed for dense, durable structure, excellent color, and a much longer lifespan than quick-growing evergreens.

How tall and wide will it get?

Given time and good conditions, Colorado blue spruce can reach 30-60 ft tall and 30-70 ft wide, developing into a broad pyramidal tree. It grows slowly enough that it stays manageable in the landscape for many years, but plan its location with that mature size in mind.

Is it really blue, and does the color last all year?

Yes. The silvery-blue cast comes from a natural waxy coating on the needles and holds through every season, including winter when the rest of the yard is dormant. Color is strongest in full sun; trees in shadier spots tend to read greener.

Is it deer resistant?

Spruce are among the more deer-resistant evergreens. The stiff, sharp, prickly needles are unappealing to browse, so Baby Blue Spruce is a reliable choice in areas where deer pressure rules out arborvitae and other soft-needled plants.

Why is my blue spruce turning brown?

A few common causes:

• Spider mites in hot, dry weather cause stippled, dull, fading needles, often with fine webbing. Rinse foliage and treat if needed.
• Needle cast disease browns and drops the inner and lower needles, usually on crowded or poorly drained trees; improve spacing and air flow.
• Drought or winter desiccation shows as browning from lack of water, especially in dry fall and winter. Deep watering during dry spells helps.
• Normal shedding of the oldest interior needles in fall is harmless if the outer growth stays healthy and blue.