Black Coral Pea Kennedia nigricans
ABOUT
The plant known as the black coral pea is a striking Australian native climber known for its distinct and attractive features. This robust plant is adorned with leaves divided into three leaflets, which are glossy and dark green, creating a luscious backdrop for its flowers. The foliage can appear almost leathery, showcasing a hardy nature that's well-suited for a variety of conditions. During its flowering season, the black coral pea comes into its own with a display of vibrant blooms. The flowers are remarkable for their deep black and yellow coloration, a rare and intriguing combination in the plant world. These pea-like flowers are arranged in racemes and are known to attract a host of pollinating insects, adding to the plant's allure in a vibrant garden setting. The trailing habit of the black coral pea makes it ideal for use on trellises, fences, or as a ground cover, with its stems gracefully twining and spreading. This versatility allows the plant to adapt easily to many garden designs, bringing with it a touch of exotic charm and a splash of dramatic color.
About this plant
- Names
Family
Fabaceae
Synonyms
Black Coral Pea, Black Kennedia
Common names
Kennedia nigricans.
- Toxicity
To humans
The Black Coral Pea is known primarily as an ornamental plant and not for its toxicity. There's no widespread evidence suggesting that it is highly toxic to humans. However, like many plants, it may cause mild stomach upset if ingested. As with any plant, some individuals may experience allergic reactions or skin irritations when coming into contact with it. If you suspect poisoning, it's important to seek medical advice.
To pets
The Black Coral Pea isn't widely recognized for being toxic to pets. Nevertheless, it's always prudent to prevent pets from ingesting plants. If a pet does eat parts of this plant, they might experience mild gastrointestinal upset. Watch for symptoms such as vomiting or diarrhea, and if these occur, consult your veterinarian.
- Characteristics
Life cycle
Perennials
Foliage type
Evergreen
Color of leaves
Green
Flower color
Black
Height
6 feet (1.82 meters)
Spread
8 feet (2.43 meters)
Plant type
Climber
Hardiness zones
9
Native area
Australia
Benefits
- General Benefits
- Ornamental value: Kennedia nigricans, commonly known as Black Coral Pea, is often used in gardens and landscapes for its attractive foliage and striking black and yellow flowers.
- Drought tolerance: Black Coral Pea is known for its ability to withstand periods of low water availability, making it suitable for xeriscaping and arid environments.
- Erosion control: The plant's dense growth habit and vigorous root system help stabilize soil and prevent erosion, particularly on slopes and banks.
- Nitrogen fixation: As a member of the legume family, Black Coral Pea can fix atmospheric nitrogen into the soil, improving soil fertility over time.
- Habitat for wildlife: Its flowers provide nectar for a variety of pollinators, including bees and birds, making it valuable for supporting local ecosystems.
- Fast growth: Black Coral Pea grows quickly, which can be beneficial for rapid coverage of trellises, fences, and other structures in landscape designs.
- Low maintenance: Once established, Black Coral Pea requires minimal care, reducing the need for water, fertilizers, and pesticides.
- Medical Properties
This plant is not used for medical purposes.
- Air-purifying Qualities
This plant is not specifically known for air purifying qualities.
- Other Uses
- Tattoo Ink: The deep black color of the Kennedia nigricans sap can be used to create a natural tattoo ink.
- Textile Dye: The flowers and seed pods could potentially be used to dye textiles and fabrics with deep purple and black hues.
- Natural Fertilizer: The nitrogen-fixing abilities of the plant can enhance soil quality, making it a useful companion plant in gardens.
- Insect Deterrent: Infusions or decoctions made from the plant can be used as a natural insect repellent or pesticide in gardens.
- Dried Floral Arrangements: The plant's strikingly long seed pods can be incorporated into dried floral arrangements for their unique appearance.
- Bioindicator: Kennedia nigricans, like many native plants, can act as an indicator of the health of its native ecosystems.
- Educational Tool: This species can serve as an educational tool to teach about nitrogen-fixing plants and their ecological roles.
- Photography Prop: Its vibrant flowers make the Black Coral Pea an appealing subject or backdrop for nature photography.
- Erosion Control: The strong, spreading growth habit of the plant helps stabilize soil and prevent erosion on slopes.
- Playground Camouflage: When grown over structures, the Black Coral Pea can create a natural 'hideout' for children's play areas.
Interesting Facts
- Feng Shui
The Black Coral Pea is not used in Feng Shui practice.
- Zodiac Sign Compitability
The Black Coral Pea is not used in astrology practice.
- Plant Symbolism
- Resilience and Strength: The Black Coral Pea, with its vigorous growth habit and ability to thrive in tough conditions, symbolizes resilience and the strength to overcome challenges.
- Connection and Support: As a climbing plant, the Black Coral Pea relies on other structures for support, which can symbolize the importance of relationships and community.
- Unique Beauty: With its distinctive black and yellow flowers, the Black Coral Pea represents unique beauty and the idea that attractiveness may come in unconventional forms.
- Adaptability: The Black Coral Pea's adaptability to a variety of soils and environments symbolizes flexibility and the ability to adjust to different situations.
- Water
The Black Coral Pea enjoys a moderate watering schedule, typically requiring watering once a week during its growing season. Adjust the frequency to allow the soil to dry out slightly between waterings, as the plant is drought-tolerant once established. During the hot season, water it with approximately 1-2 gallons per week for an established plant, reducing the amount during the cooler months or when rainfall is sufficient. Young plants may need more frequent watering to ensure steady growth, but always avoid over-watering to prevent root rot.
- Light
The Black Coral Pea thrives best in full sun to partial shade, preferring to receive at least 6 hours of sunlight a day. The ideal spot would be a location that offers morning sun and some afternoon shade, or a bright spot with dappled sunlight that mimics its natural, open woodland habitat.
- Temperature
The Black Coral Pea is hardy and can tolerate a range of temperatures, but it prefers conditions between 50°F and 85°F for optimal growth. It can survive minimum temperatures down to around 30°F, but frost may damage the foliage. Ensure to protect the plant or provide suitable cover if temperatures are expected to fall below the tolerance range.
- Pruning
Pruning the Black Coral Pea is essential to maintain its shape, encourage new growth, and prevent it from becoming overgrown. It should be pruned in late winter or early spring before new growth starts. Pruning can be done annually, focusing on removing dead or weak stems, and lightly shaping the plant as needed. After flowering, a light trim can help promote a second flush of blooms.
- Cleaning
As needed
- Soil
The Black Coral Pea thrives in a well-draining soil mix with a slightly acidic to neutral pH between 6.0 and 7.0. A suitable mix could consist of two parts loam, one part sand or perlite, and one part compost or aged manure to add fertility.
- Repotting
Black Coral Pea should be repotted every 2 to 3 years or when it outgrows its current pot, usually in spring before the onset of the vigorous growth period.
- Humidity & Misting
Black Coral Pea prefers a moderate humidity level and will thrive outdoors in its natural environment where it can typically receive this without additional help.
- Suitable locations
Indoor
Ensure bright light, minimal water.
Outdoor
Plant in sunny spot, well-draining soil.
Hardiness zone
9-11 USDA
- Life cycle
Commonly known as the Black Coral Pea, Kennedia nigricans begins its life as a seed which requires scarification to break its dormancy, a process that may naturally occur through fire or the passage through an animal's digestive system. After germination, triggered by adequate moisture, warmth, and the scarification process, a small root emerges to anchor the plant and seek nutrients, followed by the development of a shoot that grows upwards, photosynthesizing to fuel further growth. The vine then progresses through a vegetative stage, marked by the growth of distinctive three-lobed leaves, twining stems that seek support, and an extensive root system. Once mature, typically within a few years, it starts the reproductive phase with the emergence of striking black and yellow pea-shaped flowers which attract pollinators such as bees. Following successful pollination, the plant produces seed pods containing seeds that, when mature, are released into the surrounding environment to start the next generation of plants. Finally, after many years, the perennial vine may eventually senesce and die, although parts of the plant can regrow from the root system or dropped seeds may germinate to ensure the continuation of the species.
- Propogation
Propogation time
Spring to Summer
The most popular method of propagating Kennedia nigricans, commonly known as the Black Coral Pea, is through seed. To propagate by seed, it's best to do so in the fall or early spring. Prior to sowing, seeds of the Black Coral Pea benefit from pre-treatment to soften their hard coats which enables water absorption and germination. This can be done by soaking the seeds in warm water (about 122°F or 50°C) for a span of 24 hours or until they swell. Once treated, the seeds are sown in well-draining soil, just shallow enough to allow light to stimulate germination, typically less than a quarter of an inch (6 millimeters) deep. Seedlings emerge in one to three weeks if kept under warm and moist conditions. When the young plants have grown strong enough to handle, they are transplanted to their final growing positions, ensuring they have support for climbing.