Corylus Avellana ‘Contorta’ (Crazy Filbert)
Corylus Avellana ‘Contorta’ (Crazy Filbert)
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Corylus Avellana ‘Contorta’ (Crazy Filbert) is a striking deciduous shrub admired for its unique twisted branches, curled stems, and eye-catching architectural form. Its unusual growth habit creates year-round interest, especially in winter when the bare contorted branches become a standout feature in the garden. In spring, soft green foliage emerges, adding texture and freshness, while decorative catkins can provide additional seasonal appeal.
Perfect as a feature plant, specimen shrub, or conversation piece in garden beds and landscaped areas, Crazy Filbert brings character and charm to any outdoor space. Its sculptural appearance makes it ideal for gardeners wanting something distinctive, low-maintenance, and visually interesting throughout the seasons. This plant is a great choice for adding structure, texture, and a touch of natural artistry to the garden.

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Mature height
2–3 m
Mature width
2–3 m
Spacing
2–3 m apart
Evergreen/Deciduous
Deciduous
Foliage
Green foliage, yellow catkins, and twisted brown stems
Flowering Period & Fruit Development/Harvest
Late winter to early spring
Sun tolerance
Full sun to part shade
Maintenance
Low to moderate maintenance; prune lightly to maintain shape and remove unwanted suckers
Root System
Fibrous, spreading root system; generally non-invasive but allow space for healthy growth