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PlantSnap
Plant Care
Christmas fern
(Polystichum acrostichoides)
Also Known As
Christmas fern, Polystichum fern, Northern sword fern
About This Plant
Polystichum acrostichoides is a fern species commonly known as Christmas fern due to its evergreen fronds that persist through the winter. It is native to eastern North America and is a popular ornamental plant due to its attractive foliage and tolerance of a wide range of growing conditions.
Plant Care Instructions
Outdoor Size Range
18-24 inches (45-60 cm) tall and wide
Light Requirements
Christmas fern prefers partial to full shade, making it an excellent choice for shady areas of the garden.
Humidity Needs
Christmas fern prefers moderate to high humidity levels, making it a good choice for greenhouses or humid climates.
Fertilizing Schedule
Fertilize Christmas fern once in early spring with a balanced fertilizer to encourage healthy growth.
Pruning Guidelines
Pruning is not necessary for Christmas fern, but removing any dead or damaged fronds can help keep the plant looking tidy.
Common Pests and Diseases
Christmas fern is relatively pest-free, but it can be susceptible to slugs, snails, and fungal diseases in humid conditions.
Indoor Size Range
N/A
Watering Schedule
This fern prefers consistently moist soil but can tolerate some drought once established. Water regularly during the growing season and reduce watering in the winter.
Temperature Range
This fern is hardy in USDA zones 3-9 and can tolerate a wide range of temperatures, from below freezing to hot summer weather.
Growing Season
The growing season for Christmas fern is from spring to fall, with the plant going dormant in the winter.
Growing Difficulty Level
Christmas fern is relatively easy to grow and is tolerant of a wide range of growing conditions, making it a good choice for beginner gardeners.
USDA Hardiness Zones
3-9
Did You Know?
The name 'Christmas fern' comes from the fact that the evergreen fronds can be used as a festive decoration during the holiday season.
