Ilex × meserveae (blue holly) is a dense, vigorous shrub reaching 15 feet tall and 10 feet wide, named for its glossy blue-green leaves. Insignificant flowers bloom in late spring; female plants have glossy red fruit. Many cultivars available.
Blue holly is a cross of I. rugosa and I. aquifolium.
Provide full sun to part shade and moist but well-drained soil. Thinning and formal shaping can occur throughout the plant's life.
Take cuttings in summer or early fall.
Aphids may attack new growth. Also watch for scale insects and leaf miners.
Agastache 'Blue Fortune' (Agastache 'Blue Fortune'): Cold-Tolerant Hybrid with Powder-Blue Spikes
Blue False Indigo (Baptisia australis): Native Perennial with Blue Spikes and Black Pods
Evolvulus 'Blue My Mind': True Blue Blooms Without Deadheading
Fothergilla 'Blue Shadow': Compact Native with Fragrant Flowers & Blue Foliage
Geranium 'Johnson's Blue': Classic Lavender-Blue Saucer Flowers
Blue Oat Grass (Helictotrichon sempervirens): Powder Blue Foliage for Architecture
Hosta 'Blue Angel' (Hosta 'Blue Angel'): Very Large Blue Hostas with Heavily Textured Leaves
Blue Globe Onion (Allium caeruleum): Rare True Blue Flowers for Early Summer
Ilex crenata: Japanese Holly with Dense Evergreen Foliage
Ilex decidua: Possumhaw Holly with Bright Red Winter Berries
Ilex verticillata: Winterberry Holly with Persistent Red Berries
Blue Flax: Sky-Blue Blooms for Sunny, Lean Soil
Stachytarpheta urticifolia: Blue Porter Weed for Butterfly Gardens and Self-Sowing Color
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