Platanthera

Description

Platanthera is a genus of orchids that includes over 100 species. These terrestrial or epiphytic plants are distributed throughout the temperate and tropical regions of the world. Known for their showy and fragrant flowers, Platanthera species are popular among orchid enthusiasts and collectors.

Taxonomic Information

Appearance

Platanthera orchids are characterized by their erect, leafy stems and their large, showy flowers. The flowers are typically white, cream, green, or yellow, and they may have spots or stripes. The lip of the flower is often highly modified and may be shaped like a pouch or spur. The leaves are usually basal, lance-shaped, and arranged in a rosette.

Care Guide

Platanthera orchids are relatively easy to care for, but they do have some specific requirements:

• Water: Water Platanthera orchids thoroughly, but allow the soil to dry out slightly between waterings.
• Fertilization: Fertilize Platanthera orchids regularly during the growing season with a balanced fertilizer.
• Soil: Platanthera orchids prefer a well-draining, aerated soil mix that is rich in organic matter.
• Sunlight: Platanthera orchids prefer bright, indirect light. Avoid direct sunlight, which can burn the leaves and flowers.
• Hardiness Zones: Platanthera orchids are typically hardy in USDA zones 6-9.

Common Pests & Diseases

Platanthera orchids are generally healthy plants, but they may be susceptible to certain pests and diseases:

• Aphids: These small, sap-sucking insects can be controlled with insecticidal soap.
• Spider mites: These tiny pests can be controlled with neem oil or insecticidal soap.
• Fungal diseases: Platanthera orchids may be susceptible to root rot and other fungal diseases if they are overwatered or grown in poorly-draining soil.

Habitat

Platanthera orchids are found in a variety of habitats, including meadows, woodlands, and bogs. Some species are epiphytic and grow on trees, while others are terrestrial and grow in soil. Platanthera orchids are distributed throughout the temperate and tropical regions of the world, including North America, Europe, Asia, and Africa.

Question and Answer

Q: What is the meaning of the name “Platanthera”?

A: The name “Platanthera” comes from the Greek words “platanos,” meaning “flat,” and “anthera,” meaning “anther.” This refers to the flattened shape of the anther, which is the part of the flower that produces pollen.

Q: How do you propagate Platanthera orchids?

A: Platanthera orchids can be propagated by dividing the rhizomes or by seed. Division should be done in the spring or fall, and the new divisions should be planted in a well-draining soil mix. Seeds should be sown in the fall and require a period of cold stratification before they will germinate.

Q: Can Platanthera orchids be grown indoors?

A: Yes, Platanthera orchids can be grown indoors, but they require bright, indirect light and a well-draining soil mix. They may also benefit from occasional misting to increase humidity.

Q: Are Platanthera orchids fragrant?

A: Yes, many Platanthera orchids are fragrant, and some species are used in the perfume industry.

Related Plants

• Habenaria
• Calopogon
• Cypripedium
• Dactylorhiza

References

• Orchidaceae: Platanthera. (n.d.). Retrieved from https://www.gbif.org/species/7195552
• Platanthera. (n.d.). Retrieved from http://www.orchidspecies.com/platanthera.htm
• Platanthera. (n.d.). Retrieved from https://www.orchids.org/genera/platanthera