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Epidendrum Radicans Plants

Epidendrum radicans are terrestrial orchids desirable for their ease of growth and attractive clusters of small, delicate flowers. Sometimes called "poor-man's" orchids for their affordability and general hardiness, they are part of a small group of reed-stemmed, soil-based orchids. The flowers are native to tropical America and will grow outdoors in similar environments, or indoors in containers.
  1. Appearance

    • Epidendrum radicans orchids grow on long, thin stems that sometimes trail along the ground. The stems are lined with slender, alternate leaves. Each pastel-hued flower is about an inch long. If given proper care, these orchids will bloom periodically all year long, according to University of Florida Extension.

    Climate

    • All reed-stem orchids are warmth-loving plants. Although they can handle brief periods of near-freezing temperatures, the plants grow best in daytime temperatures of between 60 and 90 degrees Fahrenheit, with a drop of about 20 degrees at night. This drop in nighttime temperature is important if the plants are going to bloom properly and holds true for both indoor and outdoor orchids.

    Soil

    • Epidendrum radicans orchids are adaptable to different types of soil, according to the Orchid Club of South Australia. Still, they grow best in potting mixtures that drain well, such as those made with large percentages of bark, sand, perlite and charcoal. Any commercial planting medium made for orchids is sufficient. Locate outdoor E. radicans plants in a raised planting bed, as the height helps the soil drain.

    Water and Fertilizer

    • Epidendrum radicans are heavy feeders. Fertilize at least once a month with a water-soluble fertilizer. Use a balanced (20-20-20) fertilizer if your plant is growing in a medium that does not include bark. Use a nitrogen-rich blend (30-10-10) if you are using bark in your planting medium. Or, use fertilizer made specifically for orchids. Use the amount as suggested on the package for the size and age of your orchids.

    Problems

    • Terrestrial orchids such as E. radicans may suffer from root rot if the soil is overly waterlogged. These orchids should be grown in containers with drainage holes and should never be planted where standing water develops. Outdoor and indoor plants may suffer from common insect pests such as aphids, mealybugs or slugs and snails. Use bait to control the latter, and an insecticidal soap to get rid of aphids and mealybugs.