Contents
Description
Dianella Nigra, also known as black flax lily, is a perennial plant species that belongs to the family Asphodelaceae. It is native to Australia and New Zealand, but it has become a popular ornamental plant in many parts of the world due to its striking foliage.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Liliopsida |
| Order | Asparagales |
| Family | Asphodelaceae |
| Genus | Dianella |
Appearance
Dianella Nigra has long, narrow leaves that are dark green to black in color. The leaves can grow up to 70 cm long and are arranged in a fan-like shape. The plant produces small, blue to purple flowers in the summer, which are followed by bright blue berries in the fall. The berries are not edible, but they add a pop of color to the landscape.
Care Guide
Dianella Nigra is a relatively low-maintenance plant that can thrive in a variety of conditions. Here are some tips for caring for this plant:
- Water: Water the plant regularly, but make sure the soil is well-drained to prevent root rot.
- Fertilization: Fertilize the plant once a year in the spring with a balanced fertilizer.
- Soil: The plant prefers well-drained soil that is slightly acidic to neutral. Add organic matter to the soil to improve its fertility and drainage.
- Sunlight: Dianella Nigra can tolerate partial shade to full sun, but it prefers a spot with morning sun and afternoon shade.
- Hardiness Zones: The plant is hardy in USDA zones 8-11.
Common Pests & Diseases
Dianella Nigra is relatively pest and disease-free, but it can be susceptible to root rot if the soil is waterlogged. Some pests that may infest the plant include spider mites, mealybugs, and scale insects. Treat infestations with an insecticidal soap or neem oil spray.
Habitat
Dianella Nigra is native to Australia and New Zealand, where it grows in a variety of habitats, including forests, woodlands, and coastal dunes. The plant is adapted to dry conditions and can tolerate drought once established.
Question and Answer
Q: Can Dianella Nigra be grown in containers?
A: Yes, the plant can be grown in containers as long as the soil is well-drained and the plant is watered regularly.
Q: Can Dianella Nigra be used as a ground cover?
A: Yes, the plant can be used as a ground cover in areas with partial shade to full sun.
Q: Is Dianella Nigra deer-resistant?
A: Yes, the plant is deer-resistant.
Q: Can Dianella Nigra be propagated by division?
A: Yes, the plant can be propagated by division in the spring or fall.
Related Plants
- Dianella Tasmanica
- Dianella Revoluta
- Dianella Caerulea
References
- Encyclopedia of Australian Plants Suitable for Cultivation, by John W. Wrigley and Murray Fagg
- The American Horticultural Society A-Z Encyclopedia of Garden Plants, by Christopher Brickell
- https://www.gardeningknowhow.com/ornamental/foliage/dianella/growing-dianella-plants.htm
