Ilex aquifolium, commonly known as English Holly, is an evergreen shrub or small tree prized for its glossy, spiky green leaves and vibrant red berries. Here's a short description including its maximum height, care instructions, and hardiness:
Maximum Height: English Holly typically reaches a maximum height of 25 to 60 feet (7.5 to 18 meters), although it can be pruned to maintain a more compact size.
Care Instructions:
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Sunlight: English Holly thrives in partial to full sunlight but can tolerate some shade, especially when young. However, for the best berry production, it benefits from more sun.
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Soil: Plant in well-draining, slightly acidic to slightly alkaline soil. Ensure the soil is consistently moist but not waterlogged.
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Watering: Water regularly, especially during dry spells, to keep the soil consistently moist. Established holly trees are somewhat drought-tolerant but still appreciate consistent moisture.
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Pruning: Prune as needed to maintain the desired shape and size. Holly can tolerate heavy pruning, making it a versatile choice for hedges, topiaries, or formal garden designs.
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Fertilization: Holly generally doesn't require heavy fertilization. Apply a balanced, slow-release fertilizer in the spring to provide essential nutrients.
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Berries: Female English Holly plants produce the iconic red berries. To ensure berry production, plant a female holly alongside a male holly for pollination.
Hardiness: English Holly is hardy and adaptable to a range of climates. It is typically suited for USDA Hardiness Zones 6 to 9. However, specific cultivars may have varying cold or heat tolerances, so check the variety you have for its specific hardiness rating.
English Holly is a versatile and attractive evergreen that can serve as a focal point in the garden, provide year-round greenery, and add festive color with its berries during the winter months.