Contents
Description
Polystichum Orbiculatum, commonly known as the round-leaved sword fern, is a species of fern that belongs to the Polystichum genus. It is an evergreen fern that can reach up to 60cm in height and 90cm in width. This fern species is native to North America and is found in shady habitats such as damp woods, rocky slopes, and cliffs.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Pteridophyta |
| Class | Polypodiopsida |
| Order | Poliystichales |
| Family | Dryopteridaceae |
| Genus | Polystichum |
Appearance
The Polystichum Orbiculatum fern has a distinctive round shape with pinnate fronds that are leathery and glossy. The fronds are 30-60cm long and have a dark green color. The spores of this fern are located on the underside of the fronds and are protected by a covering called the indusium.
Care Guide
Water
Polystichum Orbiculatum requires moist soil, but not overly wet. Water the fern thoroughly when the top inch of the soil is dry to the touch.
Fertilization
Fertilize the fern in the spring and summer with a balanced fertilizer. Avoid fertilizing during the fall and winter.
Soil
The Polystichum Orbiculatum fern prefers well-draining soil that is rich in organic matter.
Sunlight
This fern species prefers partial to full shade and can tolerate some morning sun.
Hardiness Zones
Polystichum Orbiculatum is hardy in USDA zones 4-8.
Common Pests & Diseases
The Polystichum Orbiculatum fern is relatively disease resistant, but it may be susceptible to rust, scale insects, and mealybugs. These pests can be treated with insecticidal soap or neem oil.
Habitat
Polystichum Orbiculatum is native to North America and is found in shady habitats such as damp woods, rocky slopes, and cliffs. It can also be found growing in cracks in rocks and under overhanging cliffs.
Question and Answer
Q: Can Polystichum Orbiculatum grow in full sun?
A: No, this fern species prefers partial to full shade and can tolerate some morning sun.
Q: What is the hardiness zone for Polystichum Orbiculatum?
A: Polystichum Orbiculatum is hardy in USDA zones 4-8.
Q: How often should I water my Polystichum Orbiculatum fern?
A: Water the fern thoroughly when the top inch of the soil is dry to the touch.
Q: How tall can Polystichum Orbiculatum grow?
A: Polystichum Orbiculatum can reach up to 60cm in height.
Related Plants
Here are some related fern species in the Polystichum genus:
- Polystichum acrostichoides – Christmas fern
- Polystichum munitum – western sword fern
- Polystichum setiferum – soft shield fern
References
- University of Florida IFAS Extension: Polystichum acrostichoides, Christmas Fern
- Missouri Botanical Garden: Polystichum munitum
- Royal Horticultural Society: Polystichum setiferum
