Filbert (Corylus maxima)

Filbert

Also known as: Lambert nut

Filbert is remarkable for its flowers which look like cat-like tails and blooms in spring. Its Latin name Corylus maxima derives from Greek "korylus," which means "helmet," in reference to the appearance of this plant's nuts. These nuts are edible and are also known to attract squirrels.

Scientific classification

Species

Filbert (Corylus maxima)

Beeches, walnuts, and allied trees

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Perennial

Lifespan

Tree, Shrub

Plant Type

Spring, Late winter

Bloom Time

Fall

Harvest Time

4 m

Plant Height

4 m

Spread

Green, Purple

Leaf Color

2.5 cm

Flower Size

5 - 32 ℃

Ideal Temperature

Images of Filbert

Distribution of Filbert

Distribution Map

Filbert is native to regions encompassing parts of Southeastern Europe and the Eastern Mediterranean. This plant has been introduced and is now found throughout various temperate areas of Europe. Its cultivation extends beyond its native range, indicating that gardeners and horticulturists value filbert in a variety of climates and settings.

Native

Cultivated

Invasive

Introduced

No species reported

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Cultivars

There are several recognized cultivars of Filbert, including the following common varieties :

Filbert 'Purpurea'

Care Guide for Filbert

Every 2 weeks

Water

Full sun

Sunlight

5 - 32 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Filbert thrives in temperate regions with moderate drought tolerance, requiring watering every two weeks. It benefits from mulching to retain soil moisture during the growing season, which is crucial for nut development.

Fertilize: To ensure healthy growth and nut production, fertilize filbert with balanced nutrition fertilizer in spring, then switch to high nitrogen in early summer. Use 1 cup for young plants and 2 cups for mature ones every 4-6 weeks, while avoiding over-fertilization. Water before and after application.

Pruning: Filbert is a deciduous shrub valued for its edible nuts and dense foliage. Prune in early spring, removing dead or diseased branches to improve circulation, and cut older stems to ground level for new shoots. Clean tools are essential for preventing disease and enhancing health and productivity.

Propagation: Filbert can be propagated by sowing seeds, preferably after stratification. Use well-drained soil and maintain consistent moisture. Protect seedlings from harsh conditions and provide regular care until they are ready for transplanting, ensuring a stable environment for germination and early development.

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