Geographic origin: Europe.
Adult size: Height up to 25m (82'), width up to 20m (65,6').
Type of soil: Lightly acid, light and rich.
Climate: Hardy to -20°C, can be sensitive to spring frosts prefers mild climates.
Position: Full sun.
Properties and uses:
The pulpy green fruits are dark brown when ripe. It is the seed inside, the walnut that is edible. The fruits are picked at the end of October. There are a number of varieties and cultivars which have been developed for cultivating fruit and improving quality and harvests( 'Franquette', and 'Marbot', etc). The wood is much sought after in cabinet making. Plant alone.
Many fruit varieties and cultivars have been developed with the aim of increasing their yield. This is how the ‘Franquette’ was created; it is the most widespread variety and produces large fresh hard-shelled nuts in August and September. This variety is especially impressive as even young trees can produce nuts.
The ‘Parisienne’ is also a very widespread variety. Its cropping is quite late (middle of October). The nuts are large and round, the shell is soft and the flesh delicate and scented. Additionally this variety is not susceptible to bacterial diseases.
• See the catalogue of tree and shrubs with edible fruits