Overview
Schiedea pubescens Hbd. var. purpurascens Sherff is a rare plant species that belongs to the Caryophyllaceae family. It is endemic to Hawaii, specifically to the islands of Oahu and Kauai. The plant is notable for its beautiful flowers, which bloom in shades of pink and purple, and its interesting natural history.
Common Names
The plant is commonly known as the 'Awiwi'akoko in the Hawaiian language. The name 'Awiwi'akoko means 'hairy Schiedea,' as the plant has pubescent (hairy) leaves and stems. Additionally, it is also known as the 'Purple Schiedea' due to the purplish tinge on its flowers.
Appearance
Schiedea pubescens Hbd. var. purpurascens Sherff is a small, herbaceous plant that typically grows up to 50 cm tall. Its leaves are grayish-green in color, have a rounded shape, and are covered with fine hairs. The plant's flowers are tiny and have five petals, which are fused at their base. These flowers bloom in clusters at the end of the plant's branches and range in color from deep pink to purplish-red, and are up to ten millimeters in diameter.
Uses
Schiedea pubescens Hbd. var. purpurascens Sherff has no known economic or medicinal uses. However, the plant is considered an important part of Hawaii's native flora and contributes to the ecological balance of its natural habitat. It provides habitat and a food source for native insects and birds, which helps to maintain the biodiversity of the region.
Light Requirements
Schiedea pubescens Hbd. var. purpurascens Sherff prefers partial to full shade with indirect sunlight. It is commonly found in the understory of forests and in shaded areas under trees. Therefore, it is important to avoid exposing the plant to direct sunlight, especially during the hottest hours of the day, as it can damage the leaves and limit its growth.
Temperature Requirements
The plant grows best in areas with mild to warm temperatures, between 18-24°C (65-75°F). Extreme temperatures can damage or stunt its growth. Therefore, it is important to avoid exposing the plant to temperatures below 10°C (50°F) or above 30°C (86°F).
Soil Requirements
Schiedea pubescens Hbd. var. purpurascens Sherff prefers well-draining soil that is slightly acidic, with a pH between 5.5 to 6.0. The soil should be rich in organic matter and provide good aeration to the roots. The plant can tolerate a wide range of soil types, including sandy, loamy, and clay soils, but it does require regular watering to prevent the soil from becoming too dry.
Cultivation Methods
Schiedea pubescens Hbd. var. purpurascens Sherff is best grown in a humid environment with moderately high temperatures. The plant requires a well-draining soil mix with a pH range of 6.0-7.0. Make sure the plant gets indirect sunlight as it cannot tolerate direct sunlight. Place it in a well-ventilated area, away from cold drafts and sudden temperature changes.
Watering Needs
Since Schiedea pubescens Hbd. var. purpurascens Sherff prefers a humid environment, ensure you water the plant regularly. However, be careful not to overwater it as this may lead to root rot. The soil should slightly dry out before you water it again. It is advisable to use room temperature water when watering the plant.
Fertilization
During the growing season, fertilize Schiedea pubescens Hbd. var. purpurascens Sherff with a balanced liquid fertilizer every two weeks. Avoid fertilizing the plant during winter since it becomes dormant during this period. Additionally, ensure the fertilizer you use has all the essential nutrients in the right proportions.
Pruning
The Schiedea pubescens Hbd. var. purpurascens Sherff plant does not require much pruning. Simply pinch off the dead flowers to encourage more blooms. Additionally, remove any damaged or yellowing leaves as they can harbor pests and diseases that can affect the plant's overall health.
Propagation Methods for Schiedea Pubescens Hbd. Var. Purpurascens Sherff
Schiedea pubescens Hbd. var. purpurascens Sherff, commonly known as the Ka'ena Point schiedea, is a rare endemic plant species found in Hawaii. The propagation of this plant can be done through various methods, including:
Seed Propagation
Seed propagation is the most common method used for Schiedea pubescens Hbd. var. purpurascens Sherff. Seeds are collected from mature plants during the fruiting season and stored in cool, dry conditions until ready for propagation. The seeds can then be sown in a well-draining potting mix and kept moist until germination.
Vegetative Propagation
Vegetative propagation of Schiedea pubescens Hbd. var. purpurascens Sherff is possible through several methods, including:
- Stem Cuttings: Stem cuttings can be taken from the plant in the spring and summer months, when the plant is actively growing. The cuttings should be around 4-6 inches in length and include at least two nodes. The cuttings can be rooted in a well-draining potting mix and kept moist until new growth appears.
- Division: Schiedea pubescens Hbd. var. purpurascens Sherff can be divided by carefully cutting the plant into sections, ensuring that each section has roots attached. The divided sections can then be planted in individual pots with well-draining potting mix and kept moist until new growth appears.
- Layering: Layering is a propagation method that involves bending a stem to the ground and covering a portion of it with soil. The covered portion of the stem will root, and once it has developed a good root system, it can be cut from the parent plant and transplanted into individual pots.
With proper care and maintenance, Schiedea pubescens Hbd. var. purpurascens Sherff can be propagated successfully using any of these methods.
Disease Management
Schiedea pubescens var. purpurascens Sherff is susceptible to various diseases, such as fungal infections, viruses, and bacterial diseases. Prevention is the best way to manage these diseases, which includes proper site selection, soil preparation, and regular monitoring for any signs of pests or diseases.
Fungal infections are the most common diseases that affect Schiedea pubescens var. purpurascens Sherff. These infections can lead to root rot, leaf spot, and powdery mildew. To prevent fungal infections, it is essential to ensure proper plant spacing, avoid overhead watering, and promote good air circulation around the plant. Fungicides can also be used to manage fungal infections, but it is crucial to use them as directed.
Viruses and bacterial diseases are less common but can still affect Schiedea pubescens var. purpurascens Sherff. These diseases can cause stunted growth, leaf discoloration, and eventual death of the plant. The best way to manage these diseases is to remove and destroy infected plants and avoid planting new ones in the same area.
Pest Management
There are several pests that can affect Schiedea pubescens var. purpurascens Sherff, including aphids, mealybugs, and spider mites. These pests can cause damage to the leaves and stems of the plant and can also spread diseases.
Regular monitoring of the plant is essential to detect pests early. Insecticidal soaps and oils can be used to manage aphids and mealybugs. Spider mites can be managed by spraying the plant with a strong stream of water or using insecticidal soap. It is essential to follow the instructions on the label when using pesticides, as overuse can harm beneficial insects and the plant itself.
Another way to manage pests is to encourage beneficial insects such as ladybugs and lacewings to the garden. These insects feed on pests and can help to control their populations naturally.
