|Cultivation Status||Cultivated, Wild|
A plant of the drier subtropics, it is also grown in tropical areas.
A slow-growing but long-lived species it commences flowering when about 30 years old.
Trees can regularly live for 600 years or more – a specimen 21 metres tall was estimated to be 6,000 years old.
Leaves: Linear-lanceolate. Sessile, about 90-110 cm long and 4 cm wide, glaucous, silvery grey in compact rosettes at the apex of both trunk and branches.
Inflorescence: Flower spike loosely branched (paniculate), within the foliage mass. Flowers numerous, lily-like, greenish-white or light yellow, sweetly perfumed, in groups of 4-5. Pedicels 5-10 mm long: Perianth white, pink, crimson to greenish-white, tube campanulate, 1,5-4 mm long. Tepals 7-11 mm long. Anthers greenish.
Phenology: The plant blooms at intervals of about 10-15 years. After each flowering, the tree then branches.