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Sky Pencil Holly

Ilex crenata 'Sky Pencil'

  • Pencil-Thin Columnar Form Reaches 12 Feet Tall in Just 18 Inches Wide
  • Thrives in Zones 5-9
  • Showy White Blooms in Late Spring
  • Perfect for Border in Asian Gardens
  • Pollinator-Friendly - Attracts Bees
Regular price $2559
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Plant Size

Planting & Care

Where to Plant

  • Sunlight: For the tightest, densest growth, plant your Sky Pencil Holly in full sun, which means at least 6 hours of direct light. It can handle partial shade, but you might notice the vertical branches becoming slightly more open and less "pencil-like" in lower light.
  • Soil: These hollies thrive in well drained, slightly acidic soil. If you are dealing with heavy clay, mix in organic compost or peat moss at planting time to ensure the roots do not sit in stagnant water.

Watering Requirements

During the first growing season, water your holly deeply two or three times a week to help the root system become established. Mature Sky Pencil Hollies are surprisingly drought tolerant, but inconsistent moisture can lead to "bare legs" where the bottom leaves drop off. Aim for deep, infrequent soakings rather than light daily sprinkles to encourage roots to grow deep into the ground.

Pruning Tips

Because this plant naturally grows in a narrow column, it requires very little pruning. If you need to maintain a specific height or want to tighten up the sides, use bypass pruners in late winter before new growth starts. Think of this like a light haircut to remove any stray branches that have wandered out of the columnar shape, which helps the plant stay sturdy against heavy snow loads.

Fertilizer Needs

Feed your holly in early spring with a slow release fertilizer designed specifically for acid loving evergreens. Avoid applying nitrogen-rich fertilizers in the late summer or early fall. This prevents the plant from producing tender new shoots that would be easily damaged by the first hard freeze of the winter season.

Delivery and Shipping

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Under $50 $9.99
$50 - $99.99 $14.99
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Specifications

Plant specifications
Plant Characteristics Attracts Birds, Attracts pollinators, Cold hardy, Compact/Dwarf, Container Friendly, Deer-resistant, Evergreen, Full Sun, Hedge/Screen, Low Maintenance, Non-invasive, Ornamental Berries/Fruit, Shade Tolerant
Hardiness Zone 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Sunlight Full sun, Partial shade
Height 6-10 ft
Width 2-3 ft
Watering Needs Moderate
Preferred Soil Clay, Loamy, Sandy
Growth Rate Moderate
Growth Habit Bushy, Upright
Blooms In Spring
Flower Color White
Foliage Color Green
Pet Safety Toxic to pets
Suitable Space Outdoors, Indoors
Plant Name Holly
Botanical Name Ilex crenata 'Sky Pencil'
Species crenata
Cultivar Sky Pencil
Class Magnoliopsida
Does Not Ship To AK, HI, ID, MT, PR

Frequently Asked Questions

Can sky pencil holly grow in shade?

  • Sky Pencil Holly tolerates partial shade but performs best in full sun to partial sun conditions. While it can grow in shadier spots, you'll get the most compact, dense foliage and strongest columnar form with at least 4-6 hours of direct sunlight daily.

How to plant sky pencil holly?

  • Plant Sky Pencil Holly in well-draining soil with partial to full sun exposure. Space plants less than 2 feet apart (trunk to trunk) for screening, or use as single specimens in perennial beds. Plant in spring or fall for best establishment, available at naturehills.com.

How tall does sky pencil holly grow?

  • Sky Pencil Holly typically reaches 6-8 feet tall and only 2-3 feet wide at maturity. This slow-growing evergreen maintains its narrow, columnar shape naturally without pruning. Space plants 2 feet apart for screening or use as single specimens in tight spaces.

Do sky pencil holly have berries?

  • Sky Pencil Holly is a female cultivar that produces small, pretty purple berries only when pollinated by a male plant. You'll need to plant a male Ilex crenata nearby to get the dark fruit. Without a male pollinator, you'll still have attractive foliage and form.

Can you show me photos of these?

  • Sky Pencil Holly creates a dramatic vertical accent with its pencil-thin columnar form and dark green foliage. You can view detailed photos of this unique evergreen on the product page at naturehills.com to see its striking upright growth habit.

Do deer eat sky pencil holly?

  • Sky Pencil Holly is naturally deer resistant due to its dense, small evergreen leaves that deer typically avoid. The columnar form and thick foliage make it an unappealing browsing target. Plant Sky Pencil confidently in deer-prone areas for reliable year-round screening.

How often should i water it?

  • Water Sky Pencil Holly deeply once weekly during its first growing season to establish roots. Once established, this drought-tolerant evergreen needs watering only during extended dry periods. Check soil moisture 2 inches down and water when dry to the touch.

Does Sky Pencil Holly need regular pruning to maintain its columnar shape?

  • Sky Pencil Holly maintains its narrow columnar form naturally without regular pruning. This well-behaved evergreen grows in a tight, pencil-thin habit that won't outgrow its space. Light pruning in late winter can remove any wayward branches if desired.

How much fertilizer does Sky Pencil Holly need and when should I apply it?

  • Sky Pencil Holly requires minimal fertilization due to its naturally slow growth habit. Apply a balanced, slow-release fertilizer in early spring before new growth begins. A light application of granular fertilizer around the root zone is sufficient for the entire growing season.