Anthurium often grow as epiphytes on other plants. Some are terrestrial. The leaves are often clustered and are variable in shape. The inflorescence bears small flowers which are perfect, containing male and female structures. The flowers are contained in dense spirals on the spadix. The spadix is often elongated into a spike shape, but it can be globe-shaped or club-shaped. Beneath the spadix is the spathe, a type of bract. This is variable in shape, as well, but it is lance-shaped in many species. It may extend out flat or in a curve. Sometimes it covers the spadix like a hood.
The fruits develop from the flowers on the spadix. They are juicy berries varying in colour, usually containing two seeds. The spadix and spathe are a main focus of Anthuirium breeders, who develop cultivars in bright colors and unique shapes. Anthurium scherzerianum and A. andraeanum, two of the most common taxa in cultivation, are the only species that grow bright red spathes. They have also been bred to produce spathes in many other colours and patterns.
Anthurium plants are poisonous due to calcium oxalate crystals. The sap is irritating to the skin and eyes. Like other aroids, many species of Anthurium can be grown as houseplants, or outdoors in mild climates in shady spots. They thrive in moist soils with high organic matter. In milder climates the plants can be grown in pots of soil. Indoors plants thrive at temperatures between 16°C-22°C and at lower light than other house plants. Wiping the leaves off with water will remove any dust and insects. Plant in pots with good root systems will benefit from a weak fertiliSer solution every other week. In the case of vining or climbing Anthuriums, the plants benefit from being provided with a totem to climb.
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