How to Grow Blue Prince

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Blue Prince

Ilex × meserveae 'Blue Prince'

shrub

Blue Prince is a compact, evergreen holly shrub prized for its deep blue-green foliage and ornamental appeal. It is a male cultivar of the Meserve hybrid holly, selected for its hardiness and attractive appearance rather than berry production. This shrub serves as an excellent pollinator for female Meserve holly cultivars like 'Blue Princess' and 'Blue Angel'.

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Example Blue Prince timeline · Pittsburgh, PA (Zone 6b)

Plant Blue Prince
Around Apr 17

Near Pittsburgh's average last spring frost.
Tend & protect
Late spring–summer

Watering, feeding, and pest-watch reminders.
Harvest Blue Prince
Late summer into fall

Before the first fall frost (≈ Nov 8)

Sample dates for Pittsburgh, PA. Sign up to get exact Blue Prince dates for your own zip code.

Growing Conditions

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Sun: Full sun to partial shade, 4-6 hours of direct sunlight daily for best foliage color

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Water: Moderate watering; keep soil consistently moist but not waterlogged. Water deeply during establishment year and during drought. Reduce watering in winter months.

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Spacing: 36 inches

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Days to maturity: 1825-2555 (3-5 years to mature ornamental form)

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Planting depth: Plant at same depth as root ball; do not bury the crown

Soil

Type: Well-draining loamy soil with organic matter

pH: 5.5-6.5

Amendments:

Peat moss or compost at planting Mulch layer to retain moisture Sulfur if pH is too high

Growing Zones

Find your zone →

Thrives in zones 5-8, with best performance in zones 5-7

5a 5b 6a 6b 7a 7b 8a 8b

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Growth Stages

Establishment

First year after planting

Young plant developing root system with compact branching habit and small blue-green leaves

Water regularly to keep soil moist. Mulch around base. Avoid heavy pruning. Stake if needed in windy locations.

Vegetative Growth

Years 2-4

Plant grows fuller with increasingly dense foliage, maintaining upright, columnar to rounded shape with glossy, dark blue-tinted evergreen leaves

Continue consistent moisture. Prune lightly in late winter to shape. Feed with balanced fertilizer in spring.

Mature Foliage

Years 4+ (ongoing)

Full-sized shrub with rich blue-green foliage, dense branching structure, and characteristic compact, upright form. Leaves are small, glossy, and spiny-toothed.

Maintain moisture during establishment. Prune minimally; remove dead or damaged wood. Apply balanced holly fertilizer in spring.

Flowering

4-6 weeks in spring (April-May depending on zone)

Small, inconspicuous white to pale pink flowers appear in spring clusters along stems. As a male cultivar, Blue Prince produces no berries.

Flowers indicate plant maturity and readiness to pollinate female hollies. No special care needed; flowers are self-sufficient.

Companion Planting

Plan your garden →

Plant with:

Blue Princess holly Blue Angel holly Blue Maid holly Rhododendron Azalea Boxwood Japanese maple Pieris Skimmia

Avoid planting near:

Black walnut (produces juglone toxin) Salt-spray areas (use salt-tolerant varieties instead) Shallow-rooted trees competing for water

Common Pests

Remove infested leaves; apply neem oil or horticultural oil in early summer. Use sticky traps to monitor activity.
Prune out infested buds; apply spinosad or neem oil at bud break in spring.
Spray with horticultural oil in dormant season (late winter) or use insecticidal soap during growing season.
Increase humidity; spray with water; apply miticide or neem oil if severe.

Uses

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Evergreen Screening & Hedging

Ornamental

Blue Prince's compact, upright form and dense foliage make it ideal for creating privacy screens, hedgerows, and formal or informal landscape boundaries. Its year-round blue-green color provides visual interest in dormant seasons. [source]

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Pollinator Support for Female Hollies

Wildlife

Blue Prince is essential as a male pollinator for female Meserve hollies (Blue Princess, Blue Angel, Blue Maid), enabling berry production and providing food for birds in winter. [source]

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Holiday & Floral Arrangements

Household

The glossy, spiny-edged foliage is prized for fresh holiday arrangements, winter bouquets, and decorative displays due to its vibrant blue-green color and ornamental texture. [source]

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Cold-Hardy Specimen Plant

Ornamental

Blue Prince's superior winter hardiness (zones 5-8) makes it an excellent choice for cold climates where traditional hollies struggle, providing year-round structure and color. [source]

Harvest Tips

Blue Prince does not produce berries (male cultivar). Foliage can be harvested year-round for fresh arrangements. Cut stems at leaf nodes; the plant regenerates quickly from pruning. Best foliage color occurs in winter months.

Fun Facts

🌱 Blue Prince is a hybrid between English holly (Ilex aquifolium) and Japanese holly (Ilex crenata), combining the hardiness of each parent species.
🌱 The 'blue' in the name refers to the distinctive blue-green or steel-blue tint of the foliage, which is more pronounced in cooler climates and winter months.
🌱 Blue Prince must be planted near a compatible female Meserve holly pollinator (such as Blue Princess) within several hundred feet to maximize berry production on the female plants.

Gardening Terms

New to gardening? Learn about terms used in this guide:

Cultivar Full Sun Hybrid Mulch Partial Shade

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