How to Grow Meserve Holly Blue Princess
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Meserve Holly Blue Princess
Ilex × meserveae 'Blue Princess'
shrubBlue Princess is a hardy, evergreen holly shrub known for its dense foliage and abundant bright red berries that persist through winter. It is a female cultivar that requires a male pollinator (such as Blue Prince) to produce berries. This compact, pyramidal shrub is prized for ornamental landscaping and winter interest.
When should you plant Meserve Holly Blue Princess in your zone?
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Example Meserve Holly Blue Princess timeline · Pittsburgh, PA (Zone 6b)
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Plant Meserve Holly Blue Princess
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Meserve Holly Blue Princess
Late summer into fallBefore the first fall frost (≈ Nov 8)
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Growing Conditions
Soil
Growing Zones
Find your zone →Zones 5-9; most cold-hardy holly available, tolerates temperatures to -15°F with proper care
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Get my Meserve Holly Blue Princess timeline →Growth Stages
Establishment
First 12 monthsYoung shrub focuses on root development with modest above-ground growth
Water frequently to keep soil consistently moist. Mulch around base (2-3 inches deep, away from stem). Avoid fertilizing the first year.
Vegetative Growth
Years 2-3Dense branching and foliage development; shrub fills out its pyramidal form
Prune lightly in late winter to maintain shape and encourage bushiness. Apply balanced fertilizer in spring. Ensure adequate moisture.
Flowering
Late spring (May-June); 2-3 weeksSmall white or greenish flowers appear in leaf axils; female flowers are easily distinguished by prominent pistil
Ensure a male pollinator (Blue Prince) is nearby for best fruit set. Do not over-prune during flowering. Adequate moisture is critical.
Fruiting & Berry Development
June through NovemberRed berries develop from pollinated flowers and mature throughout summer into fall
Maintain consistent watering during berry development. Avoid heavy pruning once berries form. Prune only to remove dead wood or maintain shape.
Winter Dormancy
December-FebruaryFoliage remains evergreen; bright red berries persist and provide winter color and wildlife food
Minimize pruning. Protect from severe wind and heavy snow damage with burlap if necessary. No fertilizing needed.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Spray foliage with strong water stream; use insecticidal soap or horticultural oil in spring and fall. Maintain adequate humidity.
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Prune out heavily infested branches. Apply dormant oil in late winter; use horticultural oil during growing season.
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Remove and destroy infested leaves. Apply insecticidal soap; spinosad can be effective. Maintain plant vigor through proper watering.
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Remove infested twigs. Prune to improve air circulation. Neem oil or spinosad can be applied in early spring.
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Ensure good drainage and air circulation. Remove infected leaves. Avoid overhead watering. Apply fungicide in wet conditions if severe.
Uses
Winter landscaping and evergreen structure
OrnamentalBlue Princess provides year-round evergreen structure and stunning bright red berries that persist through winter, making it invaluable for winter garden interest and landscape backbone. Its pyramidal form and compact growth suit foundation plantings, hedges, and specimen displays. [source]
Holiday and festive floral arrangements
HouseholdThe bright red berries and glossy evergreen foliage make Blue Princess ideal for holiday wreaths, garlands, and winter floral arrangements. Cut branches last well in water and add festive color to home décor. [source]
Food source for birds and wildlife
WildlifeThe persistent red berries provide essential winter food for songbirds, cedar waxwings, and other wildlife when natural food sources are scarce. The dense, thorny foliage also offers shelter and nesting sites. [source]
Festive holiday decoration
CraftHolly branches with berries and foliage are traditional Christmas decorations. Blue Princess's abundant, colorful berries make it particularly suitable for wreaths, swags, and holiday table arrangements. [source]
Harvest Tips
Berries mature in fall (September-November) and persist through winter. Cut branches for holiday arrangements in late fall or winter when berries are fully colored. Berries remain on plant for wildlife food if not harvested. Use sharp pruners and harvest only mature berries.
Fun Facts
- 🌱 Blue Princess is one of the hardiest hollies available, surviving temperatures as low as -15°F, making it the northernmost-hardy hollies suitable for cold climates.
- 🌱 This holly was developed through hybridization of English holly (Ilex aquifolium) and Japanese holly (Ilex crenata), combining the hardiness of Asian species with the ornamental qualities of European types.
- 🌱 A male pollinator like Blue Prince must be within 30-50 feet for adequate pollination; without it, Blue Princess produces few or no berries, despite being genetically female.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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