Water
Keep soil consistently moist, especially during dry periods. Water thoroughly when the top inch of soil feels dry. Avoid waterlogging, as this can lead to root rot.
Ensure good drainage, particularly in containers, to prevent standing water.
American Alpine Lady Fern (Athyrium americanum) is a graceful, medium-sized deciduous fern with upright, arching fronds, ideal for shady, moist environments.
At-a-glance light, water, soil, and growing conditions from plant data
Partial Shade
25% intensity
Thrives in shady to partially shaded locations. Protect from direct afternoon sun.
Consistent Moisture
75% intensity
Prefers consistently moist soil, but good drainage is essential.
Moist, well-drained
50% intensity
Cool to Moderate
50% intensity
Prefers cooler temperatures, ideally between 15-24°C. Protect from extreme heat.
Low
25% intensity
Requires minimal fertilization; a light feeding in spring is usually adequate.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Keep soil consistently moist, especially during dry periods. Water thoroughly when the top inch of soil feels dry. Avoid waterlogging, as this can lead to root rot.
Ensure good drainage, particularly in containers, to prevent standing water.
Remove any dead, damaged, or discolored fronds at the base of the plant. This can be done anytime as needed.
In late winter or early spring, before new growth emerges, trim back all old fronds to encourage fresh, healthy development.
Division is the most common and effective method. In early spring, carefully dig up the plant and divide the root ball into smaller sections, ensuring each section has healthy roots and developing fronds.
Replant divisions immediately.
Repot container-grown plants every 2-3 years or when they become root-bound. Use a well-draining potting mix. Choose a pot that is only slightly larger than the current one to avoid overwatering issues.
Repot in early spring before new growth starts.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of American Alpine Lady Fern (Athyrium americanum)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Polypodiopsida |
| Order | Polypodiales |
| Family | Athyriaceae |
| Genus | Athyrium |
| Species | Athyrium americanum |
Similar in genus Athyrium
Answers based on plant encyclopedia data