Filbert
Corylus maxima
A hazelnut relative producing an elongated nut, grown commercially and often hybridized with C. avellana.
Family
Betulaceae
Temperature
20-27°C (absolute 5-35°C)
Rainfall
800-1200mm (absolute 600-1400mm)
Soil pH
6-6.5 (absolute 5.5-7.5)
Soil types
Well-drained loamy soils