Origin:
Pelea saint-johnii Hume var. elongata (Hbd.) B.C. Stone is a species of plant that is endemic to the Hawaiian Islands. Specifically, it is native to the island of Hawaii and can be found in dry to mesic forests at elevations from 200 to 1200 meters.
Common Names:
This plant goes by several common names including Hawaiian wildeverse, long-stem Hawaiian hoptree, and elongate Hawaiian hoptree. The name "hoptree" is derived from the fact that the bark of some Pelea species was traditionally used to make a kind of bitter tonic that was believed to help with digestion and was sometimes used as a substitute for hops in beer-making.
Uses:
This plant is not known to have any significant traditional medicinal uses. However, it is sometimes grown as an ornamental plant due to its attractive foliage and habit. In general, plants in the Pelea genus are not commonly cultivated, but some species are known to be used for wood or as a source of essential oils.
General Appearance:
Pelea saint-johnii Hume var. elongata has a fairly typical appearance for a member of the Pelea genus. It is a shrub or small tree that can grow up to 6 meters tall. The leaves are oval to elliptical in shape and arranged alternately along the stems. They are shiny and dark green on the upper surface and paler on the lower surface. The flowers are small and yellowish-green in color and are produced in clusters. The fruit is a small, round capsule containing one or two seeds.
Growth Conditions of Pelea saint-johnii Hume var. elongata
Light: Pelea saint-johnii Hume var. elongata requires bright, indirect light for healthy growth. It cannot tolerate direct sunlight because it will scorch its leaves. A north or east-facing window will provide the ideal light conditions.
Temperature: The plant thrives in warm and humid conditions, with an optimal daytime temperature ranging between 20°C-30°C. It can sustain lower temperatures as long as they do not dip below 10°C. It is highly sensitive to cold and cannot tolerate frost.
Soil: Pelea saint-johnii Hume var. elongata thrives in nutrient-rich, well-draining soil that retains moderate moisture. A mixture of peat moss, perlite, and vermiculite would be suitable. The pH level of the soil must be between 6.0 and 7.5.
Water: The plant requires regular watering, but it is essential to ensure proper drainage to avoid waterlogging. Water the plant only when the topsoil feels dry to touch. The frequency of watering must reduce during winters. Overwatering can cause root rot, which may be fatal for the plant.
Fertilizer: Pelea saint-johnii Hume var. elongata must be fed with a balanced fertilizer every two weeks during the growing season (spring and summer). The plant responds well to organic fertilizers, and it is recommended to avoid inorganic ones. During winters, do not fertilize the plant as it goes dormant.
Humidity: The plant requires high humidity levels, and a humidifier or pebble tray can help maintain optimal humidity levels. Alternatively, mist the plant regularly with clean water.
Cultivation Methods
When cultivating Pelea saint-johnii Hume var. elongata, it is important to keep in mind that this plant prefers a warm climate and well-drained soil. It is often grown in containers, where it can be easily transferred indoors or outdoors depending on the weather. Experienced gardeners can also plant it outside in a garden bed.
Watering Needs
Pelea saint-johnii Hume var. elongata requires consistent, adequate watering. The soil should never be allowed to completely dry out, but it should also not be waterlogged. Overwatering can lead to root rot, which can be fatal. In hotter and drier climates, it may require more frequent watering.
Fertilization
Fertilizing Pelea saint-johnii Hume var. elongata can help it grow faster and stay healthier. The plant responds well to slow-release fertilizers, which can be applied at the beginning of each growing season. You can also use a liquid fertilizer every few weeks throughout the growing season to give it an extra boost.
Pruning
Pruning Pelea saint-johnii Hume var. elongata is not necessary, but it can help to keep the plant compact. Deadheading spent flowers can also encourage new growth and blooming. If you do need to prune, do so in the spring or summer when the plant is actively growing. Be sure to sterilize your pruning tools before and after use to prevent the spread of disease.
Propagation of Pelea saint-johnii Hume var. elongata (Hbd.) B.C. Stone
Pelea saint-johnii Hume var. elongata (Hbd.) B.C. Stone, also known as Saint John's pelea or molokai pelea, is a slow-growing and small tree that belongs to the Rutaceae family. Propagating this plant can be done through different methods such as seed propagation and stem cuttings.
Seed Propagation
Seeds from Pelea saint-johnii can be propagated indoors using a well-draining soil mix. The seeds must be carefully extracted from the mature fruit and must be cleaned thoroughly to remove any pulp. Soak the seeds in clean water for at least 24 hours before planting. Plant the seeds in the soil mix and keep them moist by misting them regularly. It takes patience to grow Pelea saint-johnii from seeds as the germination process can take up to six months. Once the seedlings have grown to a considerable size, they can be transplanted into bigger pots or directly to the ground.
Stem Cuttings
Another effective propagation method for Pelea saint-johnii is stem cutting. Cuttings must be taken from the mature tree during the active growth phase and must be dipped in rooting hormone powder before planting. The cuttings can root in well-draining soil or a water-filled container. The container's water should be changed regularly to prevent bacterial or fungal growth, and the cuttings should be kept in a warm and humid environment, away from direct sunlight. Once the roots have developed, the plant can be potted or planted directly into the ground.
Regardless of the propagation method used, Pelea saint-johnii requires consistent care, including regular watering, fertilization, and pruning, to grow into a healthy and vibrant tree. Ensure that the growing conditions, such as temperature and lighting, are favorable to support growth and development.
Disease and Pest Management for Pelea saint-johnii Hume var. elongata (Hbd.) B.C. Stone
Pelea saint-johnii Hume var. elongata (Hbd.) B.C. Stone is not known to be susceptible to any specific diseases. However, preventive measures can be taken to avoid any possible disease issues.
Pest Management
Pest infestations can be a significant problem for Pelea saint-johnii Hume var. elongata (Hbd.) B.C. Stone. Here are some of the common pests that could affect this plant:
Mealybugs
Mealybugs are small, soft-bodied insects that can cause damage by sucking the sap from the plant. They can be controlled by wiping the affected area with a cotton swab dipped in rubbing alcohol. In severe cases, a treatment of insecticidal soap or neem oil can be used.
Spider Mites
Spider mites are tiny pests that are not visible to the naked eye but can cause damage by piercing the plant cells and sucking out its contents. They can be controlled by spraying the plant with a strong stream of water to wash them off. In severe cases, a treatment of insecticidal soap or neem oil can be used.
Preventive Measures
Here are some preventive measures that can be taken to avoid pest infestations and disease issues:
Proper Watering
Overwatering can lead to root rot, which can make the plant susceptible to disease and pest problems. Ensure that the plant is watered adequately, and the soil is well-draining.
Cleanliness
Cleanliness is essential to prevent the spread of disease and pests. Ensure that the plant is kept clean by regularly wiping the leaves with a damp cloth.
Adequate Sunlight
Pelea saint-johnii Hume var. elongata (Hbd.) B.C. Stone requires adequate sunlight to thrive. Lack of sufficient sunlight can weaken the plant, making it susceptible to disease and pests.
Good Air Circulation
Good air circulation is necessary to prevent the buildup of moisture, which can encourage the growth of disease and pests. Ensure that the plant is not placed in a location with stagnant air.
By following these measures, Pelea saint-johnii Hume var. elongata (Hbd.) B.C. Stone can be kept healthy and free of disease and pest problems.
