RedCrocus Picea 'Green Knight' Columnar Spruce, Cold Hardy Evergreen with Deep Green Needles, Live Plant for Accents, Screens & Small Spaces 7 Gallon Nursery Pot
RedCrocus Picea 'Green Knight' Columnar Spruce, Cold Hardy Evergreen with Deep Green Needles, Live Plant for Accents, Screens & Small Spaces 7 Gallon Nursery Pot
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$900.00 USD
Regular price
$1,170.00 USD
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$900.00 USD
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SKU:ber51e7-redcrocus
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Picea Green Knight
A narrow, architectural spruce with deep green year-round needles and exceptional cold hardiness.
Description
Picea Green Knight is a selected columnar spruce prized for its densely set, deep green needles and strong, upright central leader. Its naturally narrow habit brings a clean, vertical line to gardens where space is at a premium, while providing four-season structure and color. Like many spruces, it is long-lived, wind-tolerant once established, and generally low maintenance—ideal for modern landscapes seeking an elegant, evergreen accent.
Suggested Uses
- Vertical Accent / Specimen
- Entryway or Foundation Planting
- Mixed Conifer Border
- Small-Space & Courtyard Gardens
- Screening & Windbreak (narrow)
- Winter Interest
- Large Decorative Container (cool climates)
- Rock & Alpine Gardens
Plant Details
Botanical NamePicea Green Knight
Common NamePicea Green Knight
Size & GrowthNarrow, columnar habit; about 15–25 ft tall x 4–6 ft wide in 10–15 years; ultimately larger with age. Moderate vigor (~6–12 in/yr) depending on climate and soil.
Hardiness ZonesUSDA Zones 3–7 (typical for columnar spruce selections).
Foliage TypeEvergreen needled conifer; short, stiff needles hold rich green color year-round.
Bloom TimeInconspicuous; pollen/seed cones form in spring. Seed cones mature late summer to fall and may persist decoratively.
Growth RateModerate; faster in deep, evenly moist soils and cool-summer climates.
Light RequirementsFull sun (6+ hours) preferred; tolerates light, open shade. Best density and color in full sun.
Attracts PollinatorsNot a pollinator plant (wind‑pollinated). Provides shelter/nesting for birds; cones feed wildlife in some regions.
Indoor FriendlyNo — intended for outdoor landscapes; requires full sun and seasonal temperature swings.
Container FriendlyYes when young in large, well-drained containers in cool climates; plan to transplant to the ground after several years.
Deer ResistantGenerally deer-resistant; occasional browsing of tender new growth may occur in scarce food conditions.
Pet WarningNon-toxic, but sharp needles and resin can irritate mouth/skin; ingestion may cause mild stomach upset — discourage chewing.
FragrantSubtle resinous, piney scent when foliage is warmed or crushed; not a showy fragrance plant.
Cut FlowerNot used as cut flowers; branches and cones are excellent for seasonal/winter arrangements and wreaths.
Grows Well WithDwarf pines (Pinus mugo), junipers (Juniperus), heaths/heathers (Erica, Calluna), birch, ornamental grasses (Calamagrostis, Festuca), spring bulbs, and tough groundcovers (Cotoneaster, Sedum) in well-drained soils.
Care Tips
Planting InstructionsPlant in spring or early fall. Dig a hole 2–3× the width of the root ball and no deeper. Set the root flare level with, or slightly above, finished grade. Tease apart circling roots, backfill with native soil, water to settle, and mulch 2–3 in (keep mulch off the trunk). Stake in windy sites to support the central leader.
Soil MoistureKeep evenly moist the first 1–2 years; deep soak weekly in dry periods. Once established, tolerates short dry spells but performs best with consistent moisture. Avoid waterlogged conditions.
Soil TypeWell-drained loam or sandy loam is ideal. Slightly acidic to neutral pH (≈5.5–7.0). In heavy clay, improve drainage with raised planting and coarse organic matter/mineral amendments.
HumidityHandles average to low humidity. Ensure good air circulation; protect from hot, desiccating winds where possible to reduce winter burn and needle stress.
Pruning InstructionsMinimal pruning needed. In late winter or very early spring, remove dead/damaged wood and lightly tip-prune new candles to maintain a narrow outline. Avoid cutting back into old, leafless wood; do not remove the central leader.
Winter CareHardy to cold winters. Water deeply before ground freeze and maintain mulch. In exposed sites, consider burlap screening for the first 2–3 winters to limit windburn. Brush off heavy snow to prevent branch splaying; protect the leader from breakage.
Planting DepthKeep the top of the root ball level with surrounding soil; never bury the trunk. Ensure the root flare is visible. If grafted, keep the graft union above the soil line.
FertilizationFeed lightly in early spring with a slow‑release, balanced fertilizer or a conifer-specific formulation. Avoid high-salt lawn fertilizers and do not apply high nitrogen late in the season.
Special CareMonitor for spruce spider mites and aphids; encourage beneficials and rinse foliage during drought. Maintain a mulch ring and keep turf competition 18–24 in away. Avoid road salt and reflected heat. Stake or train the leader if storm-damaged to preserve the columnar form.
