Deno’s GardenMy Garden

Corylus avellana

Barcelona-nuts · Cobnut · Common Filbert

Family BetulaceaeGenus Corylus

A row of bushy multi-stemmed shrubs in full green leaf above rough grass
The whole plantMPFCC BY-SA 3.0

About the plant

What it is and where it grows — not part of any germination protocol.

The plant

Habit
Shrub, TreeExtension Gardener Plant Toolbox
Habit
shrub or treePlants of the World Online
Height
12-20 ft3.7-6.1 mExtension Gardener Plant Toolbox
Spread
8-15 ft2.4-4.6 mExtension Gardener Plant Toolbox
Flower
Gold/Yellow, GreenExtension Gardener Plant Toolbox
Blooms
SpringExtension Gardener Plant Toolbox
Native range
Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria and elsewhereGBIF Backbone Taxonomy
Hardiness zones
4-8Extension Gardener Plant Toolbox

Growing conditions

Sun
Full sun; Partial ShadeExtension Gardener Plant Toolbox
Soil
High Organic Matter, Loam (Silt), Shallow RockyExtension Gardener Plant Toolbox
Soil pH
Alkaline (>8.0), Neutral (6.0-8.0)Extension Gardener Plant Toolbox
Moisture
Good Drainage, MoistExtension Gardener Plant Toolbox

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Extension Gardener Plant Toolbox — NC State Extension; Plants of the World Online — Royal Botanic Gardens, Kew; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • Grown as coppice in lowland England, for poles used in wattle-and-daub building and farm fencing. Its nut is round, unlike the longer filbert. Wikipedia: Corylus avellana

Protocol

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 12 months from start to sowing. Then 28 days to germinate.

40% germination in 28 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Corylus p. 26Public domain
Show the original text
Corylus (Betulaceae). C. avellana DS 1 y germ. 70D(2/5 in 4th w) which was about the same percentage as fresh seeds, but these DS seeds germ. directly at 70 and did not need a prior 3 m at 40. Seeds were dead after DS 2 y at 40 or 70.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Corylus p. 26. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

How each step is done, in Deno’s words, and what Verified and Derived mean.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

Add to My Garden

View species page