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Description
Pittosporum Tenuifolium, also known as Kohuhu, is a popular evergreen shrub or small tree native to New Zealand. It belongs to the Pittosporum family, which includes around 200 species of shrubs and trees found in tropical and subtropical regions worldwide. It is a fast-growing plant that can reach heights of up to 10 meters, but it can be easily pruned to maintain a smaller size.The plant has a dense and bushy growth habit, with glossy green leaves that are narrow and lance-shaped, measuring 2-10 cm long and 3-25 mm wide. Its small and fragrant flowers grow in clusters and bloom from spring to summer, followed by small brown capsules that contain seeds.
Taxonomic Information
| Domain | Eukaryota |
|---|---|
| Kingdom | Plantae |
| Phylum | Spermatophyta |
| Class | Magnoliopsida |
| Order | Apiales |
| Family | Pittosporaceae |
| Genus | Pittosporum |
Appearance
Pittosporum Tenuifolium is an attractive plant that adds a touch of elegance to any landscape. Its glossy evergreen foliage provides year-round interest, and its small and fragrant flowers are a delight in spring and summer. The plant comes in a variety of cultivars, with different leaf colors and shapes, including variegated, bronze, or black.
Size
The plant can grow up to 10 meters tall, but it is often pruned to maintain a smaller size, usually between 1-4 meters in height.
Leaves
The leaves of Pittosporum Tenuifolium are glossy and evergreen, with a narrow and lance-shaped form. They measure 2-10 cm long and 3-25 mm wide, and they are arranged alternately on the stem. The leaves are dark green in color, but some cultivars have variegated, bronze, or black foliage.
Flowers
The plant produces small and fragrant flowers that grow in clusters and bloom from spring to summer. The flowers have a sweet and spicy scent and are usually white or cream in color, but some cultivars have pink or red flowers.
Care Guide
Pittosporum Tenuifolium is a relatively easy plant to care for, and it can adapt to different conditions. Here are some tips on how to care for this plant.
Water
The plant prefers to be kept moist but not waterlogged, especially during the growing season. Water regularly, but allow the soil to dry out slightly between waterings. Reduce watering in winter when the plant is dormant.
Fertilization
Apply a balanced fertilizer in spring and summer to promote healthy growth and flowering. Follow the manufacturer’s instructions for application rates and frequency.
Soil
The plant prefers well-draining soil that is rich in organic matter. It can tolerate a range of soil types, including sandy, loamy, or clay soils.
Sunlight
The plant prefers full sun to partial shade, but it can tolerate some shade. In hot and dry climates, it is best to provide some shade during the hottest part of the day.
Hardiness Zones
The plant is hardy to USDA zones 8-11, but it can also grow in zone 7 with some protection.
Common Pests & Diseases
Pittosporum Tenuifolium is generally a healthy plant that is not prone to many pests or diseases. However, here are some issues that may affect the plant.
Pests
The plant may be susceptible to scale insects, mealybugs, and spider mites. Use a horticultural oil or insecticidal soap to control these pests.
Diseases
The plant may be affected by root rot, leaf spot, and powdery mildew. Avoid overwatering and provide good air circulation to prevent these diseases.
Habitat
Pittosporum Tenuifolium is native to New Zealand, where it grows in a variety of habitats, including forests, scrublands, and coastal areas. It is a versatile plant that can grow in different conditions, including full sun to partial shade, and a range of soil types.
Question and Answer
Q: Is Pittosporum Tenuifolium a good choice for hedges?
A: Yes, Pittosporum Tenuifolium is an excellent choice for hedges due to its dense and bushy growth habit and glossy evergreen foliage.
Q: How fast does Pittosporum Tenuifolium grow?
A: Pittosporum Tenuifolium is a fast-growing plant that can reach heights of up to 10 meters, but it can be easily pruned to maintain a smaller size.
Q: Can Pittosporum Tenuifolium grow in pots?
A: Yes, Pittosporum Tenuifolium can grow in pots as long as the pot is large enough to accommodate its root system and the soil is well-draining.
Q: How often should I prune Pittosporum Tenuifolium?
A: Prune Pittosporum Tenuifolium once a year in late winter or early spring to maintain its shape and size.
Related Plants
- Pittosporum Tobira
- Pittosporum Undulatum
- Pittosporum Eugenoides
- Pittosporum Crassifolium
References
- “Pittosporum tenuifolium.” PlantNet. Accessed August 19, 2021. https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Pittosporum~tenuifolium.
- “Pittosporum tenuifolium.” Royal Horticultural Society. Accessed August 19, 2021. https://www.rhs.org.uk/Plants/28012/Pittosporum-tenuifolium/Details.
- “Pittosporum tenuifolium.” University of Florida IFAS Extension. Accessed August 19, 2021. https://edis.ifas.ufl.edu/publication/FP140.
