Dryopteris Intermedia

Description

Dryopteris Intermedia, commonly known as the Intermediate Wood Fern, is a deciduous fern that belongs to the family Dryopteridaceae. It is native to the eastern part of North America and can be found in moist woods, swamps, and rocky slopes. It is an ideal plant for shaded gardens and woodland landscapes.

Taxonomic Information

Appearance

The Intermediate Wood Fern has a unique frond structure that sets it apart from other ferns. It grows up to 2 feet tall and has triangular fronds that are pinnate and divided into smaller leaflets. The leaflets are narrow and pointed, and they are arranged in pairs along the stem. The fronds have a dark green color and a glossy texture, which makes them highly attractive in gardens and landscapes.

Care Guide

Here are some tips for taking care of your Intermediate Wood Fern:

• Water: Keep the soil consistently moist but not waterlogged. Water the plant deeply once a week during the growing season, and reduce watering in winter.
• Fertilization: Apply a balanced fertilizer once a month during the growing season to promote healthy growth.
• Soil: The plant prefers well-draining soil with a slightly acidic pH level. Mix in some organic matter such as compost or peat moss to improve soil quality.
• Sunlight: The Intermediate Wood Fern prefers partial to full shade. Direct sun exposure can scorch the leaves and cause damage.
• Hardiness Zones: The plant is hardy in USDA zones 4-8.

Common Pests & Diseases

The Intermediate Wood Fern is relatively resistant to pests and diseases. However, it may occasionally be affected by the following:

• Scale Insects: These pests can cause yellowing of the leaves and stunted growth. Use insecticidal soap or neem oil to control the infestation.
• Leaf Spot: This fungal disease can cause brown spots on the leaves. Remove affected leaves and improve air circulation around the plant.

Habitat

The Intermediate Wood Fern is native to North America and can be found in various habitats such as:

• Moist woods and forests
• Swamps and bogs
• Rocky slopes and cliffs

Question and Answer

Here are some frequently asked questions about the Intermediate Wood Fern:

• Q: Can the Intermediate Wood Fern tolerate drought?
• A: No, the plant prefers consistently moist soil and cannot tolerate drought.
• Q: Can the Intermediate Wood Fern be grown indoors?
• A: Yes, the plant can be grown indoors in a shady location with high humidity.
• Q: How fast does the Intermediate Wood Fern grow?
• A: The plant grows at a moderate rate and can reach its full size in 2-3 years.
• Q: Can the Intermediate Wood Fern be propagated from spores?
• A: Yes, the plant can be propagated from spores, but it requires patience and attention to detail.

Related Plants

If you’re interested in other ferns, here are some related plants to consider:

• Athyrium niponicum
• Cyrtomium falcatum
• Polystichum acrostichoides
• Adiantum pedatum
• Maidenhair Fern

References

• “Dryopteris intermedia.” Missouri Botanical Garden. Accessed May 22, 2021. https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=279778&isprofile=0&.
• “Dryopteris intermedia.” Plant Database. Accessed May 22, 2021. https://pfaf.org/user/Plant.aspx?LatinName=Dryopteris+intermedia.
• “Intermediate Wood Fern.” The Spruce. Accessed May 22, 2021. https://www.thespruce.com/intermediate-wood-fern-3269336.