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Description
Polystichum Dudleyi, commonly known as Dudley’s sword fern, is a species of evergreen fern that belongs to the Dryopteridaceae family. This fern is native to western North America and can be found on moist rocks, cliffs, and riverbanks. It is a popular ornamental plant due to its attractive foliage and hardiness.
Taxonomic Information
| Domain | Eukarya |
|---|---|
| Kingdom | Plantae |
| Phylum | Pteridophyta |
| Class | Polypodiopsida |
| Order | Polypodiales |
| Family | Dryopteridaceae |
| Genus | Polystichum |
Appearance
Polystichum Dudleyi has a clumping growth habit and can reach a height of up to 2 feet. It has dark green fronds that are lance-shaped and can grow up to 3 feet long. The fronds are leathery and glossy, with pointed tips and serrated edges. The spores are located on the undersides of the fronds and are visible as small brown dots.
Care Guide
Polystichum Dudleyi prefers moist, well-draining soil and partial to full shade. It requires regular watering, especially during hot and dry periods, to prevent the soil from drying out completely. Fertilize with a balanced fertilizer once a month during the growing season. This fern is hardy in USDA zones 6 to 9.
Common Pests & Diseases
Polystichum Dudleyi is relatively pest and disease-free. However, it may be susceptible to fungal diseases, such as rust and leaf spot, if grown in poorly-draining soil or overly wet conditions. To prevent fungal infections, ensure good air circulation around the plant and avoid overhead watering.
Habitat
Polystichum Dudleyi is native to western North America, where it can be found growing on moist rocks, cliffs, and riverbanks. It is adapted to a wide range of soil types, from sandy to clay soils, and can tolerate both acidic and alkaline soils.
Question and Answer
Q: Can Polystichum Dudleyi tolerate full sun?
A: No, this fern prefers partial to full shade.
Q: How often should I water Polystichum Dudleyi?
A: Water regularly, especially during hot and dry periods, to prevent the soil from drying out completely.
Q: What is the hardiness zone for Polystichum Dudleyi?
A: This fern is hardy in USDA zones 6 to 9.
Q: Does Polystichum Dudleyi require pruning?
A: No, this fern does not require pruning, but it can be trimmed back to remove any damaged or dead fronds.
Related Plants
- Polystichum munitum
- Polystichum acrostichoides
- Polystichum setiferum
- Polystichum polyblepharum
References
- “Polystichum dudleyi.” Missouri Botanical Garden, www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=284955.
- “Polystichum dudleyi.” Plant Care Today, 8 Feb. 2021, plantcaretoday.com/polystichum-dudleyi.html.
- “Polystichum dudleyi.” Pacific Horticulture Society, www.pacifichorticulture.org/articles/polystichum-dudleyi/.
