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Ilex × meserveae ‘Castle Spire’

Blue Holly 'Castle Spire'

Low Maintenance Hardiness H7

Narrow upright growth and glossy dark green foliage make Ilex × meserveae ‘Castle Spire’ particularly useful where evergreen screening is needed without excessive width. This female holly can produce red winter berries when pollinated by a compatible male such as ‘Castle Wall’.
SKU: ILEX-254-Y
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Plant Details

Flowering Months

January, not a flowering month
February, not a flowering month
March, not a flowering month
April, not a flowering month
May, flowering month
June, flowering month
July, not a flowering month
August, not a flowering month
September, not a flowering month
October, not a flowering month
November, not a flowering month
December, not a flowering month

Size

Max Height
1.5 m — 2.5 m
Max Spread
1.0 m — 1.5 m
Growth Habit
Densely branched plant with compact, leafy, rounded overall shape.

Planting Position

Sunlight Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.
Full Sun Part Shade
Aspect Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.
North South East West
Exposure Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.
Exposed / Sheltered
Hardiness Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.
Hardiness H7 (< −20 °C) Extremely hardy

Ideal Soil Conditions

Soil Type Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.
Chalk Clay Loam Sand
Soil Moisture Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.
Moist but permeable / Free draining
Soil pH Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.
Acid Alkaline Neutral

Plant Uses & Merits

Uses
  • Architectural
  • Coastal Areas
  • Flower Borders
  • Hedging / Screening
Merits
  • Low Maintenance

Ilex × meserveae ‘Castle Spire’ Description

Ilex × meserveae ‘Castle Spire’ is a female evergreen holly selected for a narrow, strongly upright habit. Glossy dark green, lightly spined leaves form a dense column that works well beside entrances, along boundaries and in restricted spaces where broader hollies would become too large. Small spring flowers can be followed by bright red berries when a compatible male pollinator is present, with ‘Castle Wall’ commonly paired with it. Mature plants generally reach around 2 to 3 metres high while remaining relatively narrow. Grow in full sun or partial shade in fertile soil that remains moist but drains freely. It is hardy and responds well to light trimming. Prune in late summer where a tighter formal outline is required.

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