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Description
Sphaeropteris Cooperi, also known as the Cooper’s tree fern, is a species of fern that belongs to the Cyatheaceae family. This large evergreen fern is native to the tropical rainforests of Fiji, Samoa, and Tonga. It is a popular ornamental plant due to its attractive fronds and impressive size, with some specimens growing up to 10 meters tall.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Polypodiopsida |
| Order | Cyatheales |
| Family | Cyatheaceae |
| Genus | Sphaeropteris |
| Species | Cooperi |
Appearance
The fronds of Sphaeropteris Cooperi are large, glossy, and dark green. They can grow up to 5 meters in length and are bipinnate, meaning they have two rows of leaflets on each side of the stem. The stem is rough and fibrous, with a diameter of up to 30 centimeters. The plant typically grows in a single trunk, but can occasionally develop multiple trunks.
Care Guide
Water: Sphaeropteris Cooperi requires consistent moisture, so it is important to keep the soil evenly moist but not waterlogged. Water the plant regularly, depending on the humidity of the surrounding environment.
Fertilization: Feed the plant with a balanced fertilizer every two weeks during the growing season. It is recommended to use a slow-release fertilizer for optimum growth.
Soil: Sphaeropteris Cooperi prefers well-draining soil that is rich in organic matter. A mix of peat moss, perlite, and coarse sand is a good option.
Sunlight: This fern thrives in partial shade to full shade. Avoid exposing it to direct sunlight, which can scorch the leaves.
Hardiness Zones: Sphaeropteris Cooperi is hardy in USDA zones 10-11.
Common Pests & Diseases
The most common pests that attack Sphaeropteris Cooperi are mealybugs, scale insects, and spider mites. These pests can be removed by wiping the fronds with a damp cloth or spraying the plant with insecticidal soap. The main diseases that affect this fern are root rot and leaf spot, which can be prevented by ensuring proper drainage and avoiding overhead watering.
Habitat
Sphaeropteris Cooperi is native to the tropical rainforests of Fiji, Samoa, and Tonga. It grows in moist areas with high humidity, such as riverbanks and valleys. The plant is often found growing in the understory of larger trees, where it receives filtered sunlight.
Question and Answer
Q: Can Sphaeropteris Cooperi be grown indoors?
A: Yes, this fern can be grown indoors as long as it is provided with enough humidity, indirect sunlight, and consistent moisture.
Q: How often should Sphaeropteris Cooperi be fertilized?
A: It is recommended to fertilize this fern every two weeks during the growing season.
Q: What is the ideal temperature range for this fern?
A: Sphaeropteris Cooperi prefers temperatures between 60-80°F (16-27°C).
Q: How often should I water this fern?
A: This fern requires consistent moisture, so it is important to keep the soil evenly moist but not waterlogged. Water the plant regularly, depending on the humidity of the surrounding environment.
Related Plants
- Sphaeropteris Horrida
- Sphaeropteris Medullaris
- Sphaeropteris Cooperi x Medullaris
References
- Flora of Fiji: Cyatheaceae
- Gardening Know How: Cooper’s Tree Fern Care – How To Grow A Cooper’s Tree Fern
- RHS: Sphaeropteris Cooperi
