The screw pines are stiff-leaved saw-edged plants often grown in window-gardens and used for porch decoration.

'The Pandanus utilis and P. Veitchii (the latter striped-leaved or white-leaved) are exceedingly ornamental, and are well adapted to house culture. The singular habit of growth, bright glossy leaves, and the ability to withstand the dust and shade of a dwelling room, make them a desirable addition to the house collection.

They are propagated by the offsets or young plants that grow around the base of the trunk; or they may be increased by seed. If by the former method, the offsets should be cut off and set in sand, at a temperature of 65° or 70°. The cuttings root slowly and the plants for a time make very slow growth. The general cultural treatment is that of palms. Give abundance of water in summer.