HORT 302

BROMELIACEAE OR PINEAPPLE FAMILY

DIVISION: SPERMATOPHYTA
FAMILY : BROMELIACEAE

BROMELIACEAE PINEAPPLE FAMILY Introduction: Most bromeliads grown indoors are tropical epiphytes though the pineapple is a terrestrial member of this family. All bromeliads are natives of the Americas but Spanish moss grows extensively in trees in the southern states. Bromeliads are monocots and have leaves and flowers characteristic of the Monocotyledonae. The bromeliad plant grows vegetatively and dies after it flowers. As it is dying, the mother plant sends out pups which follow the same growth pattern. Since they are epiphytes, bromeliads do well in a moist but well aerated medium. The cup in the heart of the bromeliad catches and holds water and is also the source of nutrition since many insects, bird droppings, etc. accumulate in the water. Bromeliads are a relatively recent group of indoor plants, being in common cultivation for about the last 50 years. For that reason many do not have common names but have names derived from their genus. Aechmea is a genus that produces attractive foliage with various color patterns. Its inflorescence is large with close internodes. There are many species in cultivation. Ananas comosus is the pineapple. Although it is a terrestrial bromeliad, it has a relatively sparse root system. A common way to start a pineapple is from the crown of a fruit that was eaten. Cut the crown with a little flesh at its base. Strip away the flesh and basal leaves. Let the crown sit out for a few days before sticking it in a propagation bed. It roots rapidly, usually within a couple of weeks. Species in the genus Billbergia have attractive foliage and produce flowers in long inflorescences. The colorful bracts call attention to the flowers. Cryptanthus, the earth star, is a terrestrial bromeliad that is very tolerant of dry places and makes a good plant in a dish garden of drought tolerant plants. Many have very colorful leaves. Plants in the genus Neoregelia have very colorful leaves. Since the flowers are borne within the rosettes of leaves, they are especially grown for their brightly colored, variegated leaves. General Care of Bromeliads: temperature: Standard room temperature is acceptable for the bromeliads. medium: Terrestrial forms can be potted in a mix containing sand and soil. The general purpose medium given above would be acceptable. Epiphytic types need excellent drainage and air movement through the root system. The media above for epiphytes would be acceptable. water: The roots should be moist but not wet. The roots should dry between waterings. Water is often put into the cup formed by the leaves. Water high in sodium would be a special problem and should not be used for bromeliads. Dump the water out and replace it from time to time. light: Bromeliads can tolerate lower light intensities, but they grow best and are most colorful at brighter light in a warm, humid environment. Intense summer light in a warm, arid climate would burn most of the plants in this family. fertilization: Light fertilization is all that is needed. Slow release fertilizer in the pots of terrestrial forms would be adequate. Dilute fertilizer solution may be put into the cup formed by the leaves. pests and problems: Bromeliads are nearly pest free. Virus may be the most serious problem. grooming: Remove dead leaves and repot pups when they become crowded. propagation: Pups or offsets are the most common method of propagation. When the mother plant has flowered it will die but as it is dying it will make one, a few, or many new pups.

Urn Plant
Pineapple
Billbergia Fantasia
Cryptanthus
Silver Queen
Guzmania
Nidularium
Tillandsia
Vriesia