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Description:
Dracophyllum Arboreum, commonly known as the tree heath or mountain neinei, is a species of shrub that belongs to the family Ericaceae. It is native to New Zealand and can be found in alpine and subalpine areas throughout the country. The tree heath can grow up to 8 meters tall and has a narrow, conical shape. It is an evergreen plant with small, leathery leaves that are arranged in a spiral pattern around the stem. The leaves are dark green on the upper surface and pale green on the lower surface.
Taxonomic Information:
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Ericales |
| Family | Ericaceae |
| Genus | Dracophyllum |
Appearance:
The tree heath has a distinctive narrow conical shape with a single trunk that can grow up to 8 meters tall. The bark is thin and flaky, and the branches are densely covered with small, leathery leaves that are arranged in a spiral pattern around the stem. The leaves are about 1–2 cm long and 3–4 mm wide. They are dark green on the upper surface and pale green on the lower surface. The flowers are small, white, and bell-shaped, and they are produced in dense clusters at the ends of the branches. The fruit is a small, dry capsule that contains numerous tiny seeds.
Care Guide:
Water: The tree heath prefers moist but well-drained soil. Water the plant regularly, especially during the growing season, and make sure the soil stays evenly moist.
Fertilization: The tree heath does not require much fertilization. Apply a slow-release fertilizer in the spring to promote growth.
Soil: The plant prefers acidic soil with a pH of 4.5 to 6.0. Make sure the soil is well-drained and rich in organic matter.
Sunlight: The tree heath prefers full sun to partial shade. It can tolerate some shade but will not flower as well in shady conditions.
Hardiness Zones: The tree heath is hardy in USDA zones 8 to 10.
Common Pests & Diseases:
The tree heath is susceptible to several pests and diseases, including:
- Scale insects: These pests can cause yellowing of the leaves and stunted growth. Treat with insecticidal soap or oil.
- Root rot: This disease is caused by overwatering and poorly-drained soil. Avoid overwatering and make sure the soil is well-drained.
- Leaf spot: This fungal disease can cause yellow or brown spots on the leaves. Remove infected leaves and treat with a fungicide.
Habitat:
The tree heath is native to New Zealand and can be found in alpine and subalpine areas throughout the country. It grows best in cool, moist conditions and prefers well-drained soils. It is commonly found in rocky, mountainous areas and is an important component of many alpine ecosystems.
Question and Answer:
Q: Is the tree heath a good plant for landscaping?
A: Yes, the tree heath is a great plant for landscaping, especially in alpine or mountainous areas. It has a unique shape and attractive foliage, and it can tolerate harsh growing conditions.
Q: How fast does the tree heath grow?
A: The tree heath is a slow-growing plant, and it can take several years to reach maturity. However, it is a long-lived plant and can survive for many decades in the right growing conditions.
Q: Does the tree heath require pruning?
A: The tree heath does not require much pruning, but you can remove dead or damaged branches as needed to maintain its shape.
Q: Can the tree heath be grown in containers?
A: Yes, the tree heath can be grown in containers, but it will require frequent watering and fertilization to thrive.
Related Plants:
- Dracophyllum Longifolium
- Dracophyllum Traversii
- Dracophyllum Menziesii
- Dracophyllum Sinclairii
References:
- https://www.nzpcn.org.nz/flora/species/dracophyllum-arboreum/
- https://www.gardeningknowhow.com/ornamental/shrubs/tree-heath/growing-tree-heath-plants.htm
- https://www.gardeningwithangus.com.au/dracophyllum-arboreum-tree-heath/
