Disa Filicornis

Description

Disa Filicornis, also known as the Unicorn Orchid, is a species of orchid that is native to South Africa. Its name is derived from the Latin word “filum,” which means thread, and “cornu,” which means horn, due to its long, slender petals that resemble unicorn horns. This orchid species is highly sought after by collectors and enthusiasts alike for its unique appearance and striking beauty.

Taxonomic Information

Appearance

Disa Filicornis produces tall, slender stems that can reach up to 50 centimeters in height. The flowers are typically pink or purple and have long, thread-like petals that can grow up to 15 centimeters in length. The lip of the flower is wide and flat, with a bright yellow or orange center. The leaves are long and narrow, and are arranged in a fan-like pattern along the stem. This orchid species blooms in the summer and can produce up to 20 flowers per stem.

Care Guide

Disa Filicornis requires specific care in order to thrive. Here are some important factors to keep in mind:

Water

This orchid species requires consistent moisture, but does not tolerate standing water. It is important to keep the soil moist but not waterlogged, and to ensure that the pot has proper drainage.

Fertilization

Disa Filicornis benefits from regular fertilization during the growing season. Use a balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium, and apply it every two weeks.

Soil

This orchid species requires a well-draining potting mix. Use a mixture of peat moss, perlite, and coarse sand to ensure proper drainage.

Sunlight

Disa Filicornis prefers bright, indirect sunlight. Avoid placing it in direct sunlight, as this can cause the leaves to burn.

Hardiness Zones

This orchid species is hardy in USDA zones 10 and 11.

Common Pests & Diseases

Disa Filicornis is susceptible to a variety of pests and diseases, including:

Spider Mites

These tiny pests can suck the sap out of the leaves, causing them to turn yellow and fall off. They can be controlled with insecticidal soap or neem oil.

Thrips

These pests are small, slender insects that feed on the flowers and leaves. They can be controlled with insecticidal soap or neem oil.

Root Rot

This disease is caused by overwatering and can lead to the death of the plant. To prevent root rot, ensure that the soil has proper drainage and avoid overwatering.

Habitat

Disa Filicornis is native to South Africa and is found in wetland areas, such as marshes and streambanks. It grows at elevations of up to 2,000 meters and prefers cool, moist conditions.

Question and Answer

Q: How often should I water my Disa Filicornis?

A: Disa Filicornis requires consistent moisture, but does not tolerate standing water. Water it once a week and ensure that the soil has proper drainage.

Q: Can Disa Filicornis be grown outdoors?

A: Disa Filicornis is hardy in USDA zones 10 and 11, and can be grown outdoors in these zones as long as it is protected from direct sunlight and extreme temperatures.

Q: How often should I fertilize my Disa Filicornis?

A: Disa Filicornis benefits from regular fertilization during the growing season. Use a balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium, and apply it every two weeks.

Q: How do I propagate Disa Filicornis?

A: Disa Filicornis can be propagated by division. Carefully separate the plant into two or more sections, making sure that each section has roots attached. Repot the sections in fresh potting mix and water them thoroughly.

Related Plants

• Disa Uniflora
• Disa Gracilis
• Disa Ophrydea
• Disa Tripetaloides

References

• “Disa Filicornis.” World of Flowering Plants, 19 Aug. 2014, worldoffloweringplants.com/disadendrobiinae/disa-filicornis-unicorn-orchid/.
• “Disa Filicornis.” Orchid Care Tips, orchid-care-tips.com/disa-filicornis.html.
• Phillips, Roger, and Martyn Rix. “Disa Filicornis.” The Botanical Garden, vol. 1, 2002, pp. 97–98.