Family: Bromeliaceae

there are around 160 species in this genus of large, showy bromeliads from highland areas of South America. Because of their size, they are generally grown in parks and public gardens, rather than home gardens, where they offer a spectacular display when in bloom. The strap-like leaves radiating from the centre are usually narrow and heavily barbed. Puyas are terrestrial and their natural habitat is among rocks. In areas prone to frost, grow in a cool greenhouse or conservatory.

Species

P. berteroniana, from Chile, produces what many believe is the world's most beautiful flower-a single, yucca-like inflorescence, covered with scores of metallic blue flowers, with orange stamens.

P. spathacea, from Argentina, to 1 m (3 ft) or more, has dark blue flowers on a branched, red-stemmed stalk.

P. venusta is not quite as large as some of the species and suits home gardens. The inflorescence combines purple and deep rose pink to create a stunning effect.

Cultivation

In the greenhouse, grow in pots of soilless potting compost. Plants need maxi-mum light. Keep compost only slightly moist in winter; water more freely at other times. Where they can be grown outdoors, choose a sunny spot with well-drained soil. Propagate from seed germinated at 21°C (701)

Climate

Zone 10 to tropical.