Torreya — 6 species
Botanical species in the genus Torreya recorded in the PlantPeers database.
Torreya californica
Torreya californica
Family: Taxaceae
Cultivation
Torreya californica is a fairly cold-hardy tree, able to tolerate temperatures falling to between -17.7°c and -12.2°. One report says that trees are only hardy in the milder parts of Britain, whilst another says that trees are hardy in Britain at least as far north as Edinburgh. This species is the only member of the genus that is fully adapted to cool maritime climates.
Full cultivation guide →Torreya fargesii
Torreya fargesii
Family: Taxaceae
Cultivation
Torreya fargesii is moderately cold hardy when dormant, tolerating occasional temperatures falling to between -17.7°c and -12.2°c). Succeeds in ordinary garden soil, tolerating some lime. Requires a sheltered position and either high humidity or a moist riverside soil.
Full cultivation guide →Torreya grandis
Torreya grandis
Family: Taxaceae
Cultivation
Torreya grandis is moderately cold-hardy when dormant, tolerating occasional temperatures falling to between -12.1°c and -6.7°c. This species is not very hardy in Britain, it only succeeds outdoors in the milder areas of the country. It succeeds outdoors at Kew, a tree was 8 metres tall in 1970.
Full cultivation guide →Torreya jackii
Torreya jackii
Family: Taxaceae
Cultivation
Torreya jackii is a species of warm temperate to subtropical regions in a monsoonal climate with an annual precipitation of 1,350 - 1,600mm and a mean annual temperature of 17 - 20°c, with absolute minimum of -10°c. A fairly cold hardy species when dormant, it can tolerate occasional temperatures falling to between -12.1°c and -6.7°c. This species is not very hardy in Britain, though trees can be grown outdoors in the milder parts of the country.
Full cultivation guide →Torreya nucifera
Torreya nucifera
Family: Taxaceae
Cultivation
Torreya nucifera is fairly cold hardy when dormant, able to tolerate temperatures falling to between -17.7°c and -12.2°c. Succeeds in ordinary garden soil, tolerating some lime. Prefers an acid soil.
Full cultivation guide →Torreya taxifolia
Torreya taxifolia
Family: Taxaceae
Cultivation
Torreya taxifolia is somewhat cold-hardy when dormant, tolerating temperatures down to between -6.6°c and -1.1°c - although there is also a report that trees at the Biltmore estate in North Carolina have survived temperatures as low as -31°c. The plant grows wild in an area with a subtropical climate with wet summers and mild, dry winters. Mean annual precipitation is 1,420mm.
Full cultivation guide →