Nahanni oak fern (Gymnocarpium continentale) is a delicate, deciduous fern forming clumps of shuttlecock-like fronds. It thrives in cool, moist, shaded woodland environme
At-a-glance light, water, soil, and growing conditions from plant data
Partial to full shade
25% intensity
Prefers dappled sunlight or shade, protect from direct afternoon sun.
Keep consistently moist
75% intensity
Avoid drying out, but also avoid waterlogged conditions.
Humus-rich, well-drained
50% intensity
Cool to moderate
50% intensity
Prefers temperatures between 15-24°C. Avoid extreme heat or cold.
Light feeding
25% intensity
Apply a balanced, slow-release fertilizer in spring.
Safety information from plant toxicity data
| Attribute | Value |
|---|
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Keep the soil consistently moist but not waterlogged. Water thoroughly when the top 2-3 cm of soil feels dry. Avoid allowing the roots to dry out completely, especially during warmer months.
Reduced watering may be needed in winter, but never let it become bone dry.
Remove any dead, damaged, or yellowing fronds at the base of the plant using clean, sharp pruners. This helps maintain the plant's health and appearance.
Pruning can be done anytime you notice unsightly foliage, but major pruning is best done in early spring before new growth emerges.
Nahanni oak fern is primarily propagated through division of established clumps. Carefully dig up the plant and gently separate sections with healthy roots and fronds.
Replant divisions immediately in moist, well-draining soil. Spores can also be used, but this is a slower and more complex method.
Repot only when the plant becomes root-bound, typically every 2-3 years. Choose a pot that is slightly larger than the current one. Use a well-draining, peaty potting mix amended with compost.
Repot in early spring before new growth begins to minimize transplant shock.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Nahanni Oak Fern (Gymnocarpium continentale)
Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Polypodiopsida |
| Order | Polypodiales |
| Family | Cystopteridaceae |
| Genus | Gymnocarpium |
| Species | Gymnocarpium continentale |
Similar in genus Gymnocarpium
Answers based on plant encyclopedia data
