Family: Araceae

This is a large genus of some 50o species of climbing, and often epiphytic, plants, native to tropical America and widely grown indoors. Adapatable and fast-growing, they are able to survive in a variety of environments, some flourishing with low humidity and little natural light. In their habitat, the climbing species reach to the top of the tallest trees, but can be grown in pots if provided with support. Using a modestly sized container will encourage them to become very bushy. While they have unusual, arum-like flowers, they are grown mostly for their glossy foliage which varies substantially in shape, size and colour. Many species have been hybridized to produce a range of good cultivars.

Species

P. bipinnatifidum, formerly and better known as P. selloum, has very large, deeply divided leaves. It is generally shrub-like, but is semi-climbing in the tropics. It is widely used as a house plant but it can become very large and take up considerable space.

P. crasinervium, a climber, has red-margined leaves with purple stalks, and yellow and green flowers. P. domestician, elephant's ear, has triangular leaves.

P. scandens, heartleaf philodendron, is a climber with long, trailing stems and dark green leaves.

Cultivation

Grow in a warm greenhouse or conservatory, or as house plants. They thrive in soilless potting compost. Good light is needed, but shade from direct sun. Provide a humid atmosphere. Water well when in full growth, but far less in winter. Climbers can be sup-ported on poles covered with sphagnum moss, which should be kept moist. Propagate from leaf-bud or stem-tip cuttings in summer, and root them with bottom heat. Alternatively, layer in spring.

Climate

Tropical.