Silverfern (Pityrogramma calomelanos)
Care, watering, light and tips for Silverfern on Floravia.
Quick facts
- Family: Pteridaceae
- Difficulty: Demanding
- Watering: every 2 days
- Light: Shade
- Temperature: 10–28 °C
- Toxicity: Toxic to pets
About Silverfern
Pityrogramma calomelanos, known as ’ämo’a popa’ä, is a medium-sized terrestrial or rupicolous fern, valued for its bipinnate fronds that are dark green on the upper side and a distinctive silvery-white or yellowish underside due to a powdery waxy coating. Its delicate yet vibrant appearance makes it ideal for shady tropical gardens, humid terrariums, or as an indoor plant in hanging baskets where its color contrast can be fully appreciated.
Native range
Tropical and subtropical regions of America, Africa, and Asia
Care tips
It prefers partial shade or bright indirect light, avoiding direct sunlight which can scorch its fronds. Keep the substrate consistently moist but not waterlogged, ensuring good drainage; prolonged dryness is its main enemy. Use an organic-rich, well-draining, and slightly acidic substrate, such as a fern mix or a combination of peat, perlite, and bark. Avoid cold drafts and sudden temperature changes, as it is sensitive to these conditions.
How to save a dying Silverfern
- Warning signs
- Wilting, yellowing, or browning fronds, especially if substrate is dry. Lack of new growth. Dehydration.
- First aid
- Submerge pot in lukewarm water until no bubbles. Mist fronds with non-calcareous water. Increase ambient humidity.
- What kills it
- Prolonged dry substrate and low humidity. Intense direct sun exposure. Nutrient-poor substrate.
- Can it be saved?
- Yes, if rhizomes are still firm and green. Recovery can be slow, but it's a resilient fern.