Platanthera unalascensis ssp. elata - Overview
Platanthera unalascensis ssp. elata, also known by its common name Tall Rein Orchid, belongs to the family Orchidaceae. It is a plant species that originates from North America, particularly from Alaska, British Columbia, Washington, Oregon, and California.
Appearance
The Tall Rein Orchid grows up to 60 cm in height and produces clusters of small, white, fragrant flowers. The leaves of this plant are oblong-lanceolate, and the stem is thin and erect.
The flowers of the Tall Rein Orchid bloom from July to August, and the pollination is conducted by moths.
Uses
Platanthera unalascensis ssp. elata has been used in various traditional medicines to treat headaches, sore throats, and indigestion. However, it is essential to note that the efficacy and safety of using this plant for medicinal purposes have not been thoroughly researched.
The Tall Rein Orchid is primarily grown as an ornamental plant in gardens and landscapes due to its aesthetic appearance.
Overall, Platanthera unalascensis ssp. elata is an exquisite orchid that adds beauty to its surroundings.
Light Requirements
Platanthera unalascensis ssp. elata prefers growing in areas with moderate sunlight exposure. It needs at least 4-6 hours of direct sunlight and the rest of the time it should be in shade. Too much sunlight can cause the leaves to shrivel up and turn yellow, while too little sunlight can inhibit its growth rate.
Temperature Requirements
Platanthera unalascensis ssp. elata prefers a cool and moist environment. It grows well in areas with a temperature range of 10-24°C (50-75°F) during the day, and 2-12°C (35-54°F) at night. During winter, when the temperature drops below freezing point, the plant goes dormant and resumes growth in early spring.
Soil Requirements
Platanthera unalascensis ssp. elata requires a well-draining, nutrient-rich soil. It grows best in moist soils with a pH range of 5.5-6.5. The soil must have ample organic matter, and good airflow. Soil that is too heavy or waterlogged can inhibit growth or cause root rot. This plant is often found in areas such as bogs, streambanks, and wet meadows where soil moisture is high.
Cultivation methods
Platanthera unalascensis (Spreng.) Kurtz ssp. elata (Jepson) Taylor & MacBryde, commonly known as the tall northern bog orchid, can be grown in a variety of soil types and conditions. It prefers acidic soil with high organic matter content, which can be achieved by adding peat moss or compost to the planting area. Plant the orchid in a location that receives partial to full shade, as direct sunlight can scorch its leaves.Watering needs
Platanthera unalascensis requires consistent soil moisture, but avoid overwatering as waterlogged soil can suffocate the roots. Water the orchid regularly and thoroughly, allowing the soil to dry slightly between waterings. In hot and dry conditions, increase the frequency of watering to prevent the soil from drying out completely.Fertilization
Fertilizing Platanthera unalascensis is not necessary as it can obtain the required nutrients from the soil. However, if the orchid appears stunted or begins to yellow, a light application of a balanced, slow-release fertilizer can be used once a month during the growing season.Pruning
Platanthera unalascensis requires very little pruning. Remove any dead or yellowing leaves as they appear to prevent the spread of disease. After the orchid has finished flowering, cut back the flower stem to the base of the plant. Avoid cutting back any healthy foliage as it is necessary for photosynthesis and the production of energy for the plant.Propagation of Platanthera unalascensis (Spreng.) Kurtz ssp. elata (Jepson) Taylor & MacBryde
Platanthera unalascensis (Spreng.) Kurtz ssp. elata (Jepson) Taylor & MacBryde, commonly known as the white bog orchid, is a perennial plant that is native to North America. The plant blooms in the summer, producing white flowers that are arranged in a spike. Propagation of the plant can be carried out through various methods.
Seed Propagation
The most common method of propagating Platanthera unalascensis is through seed propagation. The seeds of the plant are small, and they need to be sown on a sterile seed-starting mix. The seeds must be covered lightly with the mix, and then the container must be covered with clear plastic. The container must be kept in a warm, bright area, and the plastic must be removed once the seeds have germinated. The seedlings should be transplanted into individual pots once they are big enough to handle.
Division
Another method of propagating Platanthera unalascensis is division. Division is best done after the plant has finished flowering and has entered its dormant phase. The plant must be dug out, and the crown must be divided into smaller pieces, each with an adequate amount of roots. The divided sections must be promptly planted in well-draining soil in new containers.
Cutting
Platanthera unalascensis can also be propagated through cuttings. The cuttings should be taken from the plant in the spring, and they must be dipped in rooting hormone before being placed in a potting mix. The potting mix must be moist, and the container must be covered with plastic to maintain the humidity. The cuttings will root in a few weeks, after which they can be transplanted into individual containers and grown until they are mature enough to be planted outside.
Disease Management for Platanthera unalascensis (Spreng.) Kurtz ssp. elata (Jepson) Taylor & MacBryde
Platanthera unalascensis is generally healthy and resilient, but some diseases may affect its growth and appearance. The following are some common diseases that might affect the plant and suggestions for managing them:
Basal Rot
Basal rot is caused by a soil-borne fungus called Rhizoctonia. It infects the plant's roots and causes stunted growth, yellowing of leaves, and wilting. To manage this disease, remove infected plants and debris from the soil to prevent further spread. Also, avoid overwatering and improve soil drainage. Fungicides may be used, but prevention is the best cure.
Leaf Spot
Leaf spot is a fungal disease that causes circular brown or black spots to form on leaves. It is usually caused by wet conditions, high humidity, and poor air circulation. To manage leaf spot, remove infected leaves and improve air circulation around the plant. Avoid overhead watering and ensure that the soil is well-drained. Fungicides may be used to prevent further spread.
Pest Management for Platanthera unalascensis (Spreng.) Kurtz ssp. elata (Jepson) Taylor & MacBryde
The following are some common pests that might affect the plant and suggestions for managing them:
Spider Mites
Spider mites are tiny insects that feed on the plant's sap, causing leaves to yellow, stipple, and drop prematurely. To manage spider mites, spray the plant with water to wash them off, and improve humidity around the plant. Also, maintain good hygiene practices, such as removing fallen leaves around the plant, to prevent further spread. Insecticides may be used, but they should be used only as a last resort.
Slugs and Snails
Slugs and snails are common pests that feed on the plant's leaves, causing holes and irregular shapes. To manage slugs and snails, remove debris and hiding places around the plant and handpick them when the plant is wet. Copper tape or barriers may be used, but they require constant maintenance to be effective.