Despite its festive name, the Frosty Fern isn’t a fern at all — and it’s not especially fond of frost either. But don’t let that fool you. This small, feathery plant has earned its place among holiday favorites thanks to its soft, moss-like texture and fresh, frosted look. With its bright green tips and delicate growth habit, it brings a bit of woodland charm to winter displays and thrives indoors when given the right care.
Meet the Frosty Fern
Frosty Fern (Selaginella kraussiana ‘Variegatus’) is a variety of clubmoss, a relative of ferns that naturally grows in humid, shaded forests. It forms dense, mounding tufts of tiny leaves that stay lush year-round. The plant gets its name from the creamy-white tips that appear on new growth, giving it a lightly “frosted” appearance that fits perfectly with the season.
During the holidays, you’ll often see Frosty Ferns sold in small pots or grouped with miniature evergreens and mosses. But with proper care, they make beautiful long-term houseplants — staying vibrant and full through the winter and well beyond.
Light & Location
Frosty Ferns love bright, indirect light but not direct sun. Too much light can cause the delicate foliage to fade or crisp.
- An east- or north-facing window is ideal.
- If light levels are low in winter, they’ll tolerate it — just avoid dark corners or spots near heat vents.
These plants prefer steady, mild conditions without drafts or temperature swings.
Temperature & Humidity
As tropical plants, Frosty Ferns prefer cool to moderate temperatures — ideally 60–75°F. What they need most, however, is humidity. Dry indoor air is their biggest enemy.
Here’s how to help them thrive:
- Keep them away from heating vents and radiators.
- Mist lightly every few days, or place the pot on a tray filled with pebbles and water to increase moisture in the air.
- Grouping them near other plants can also boost local humidity.
If the leaf tips start to brown or curl, that’s usually a sign the air is too dry.
Watering & Soil
Frosty Ferns like consistently moist soil, but never soggy. Their fine root system can dry out quickly if ignored, so steady watering is key.
- Water when the surface just begins to feel dry — not before, not after.
- Use room-temperature water, and ensure the pot has good drainage.
- Avoid letting the soil dry completely or remain saturated.
They prefer slightly acidic, well-aerated soil. A peat-based potting mix or one designed for ferns works well.
Feeding & Maintenance
Frosty Ferns grow slowly, especially in cooler months, and need only light feeding.
- Apply a diluted houseplant fertilizer every 4–6 weeks during spring and summer.
- Pause feeding in fall and winter while growth slows.
Pruning isn’t usually necessary — simply pinch off any brown or uneven tips to maintain a compact, tidy form. Regular misting or rinsing helps keep the foliage clean and fresh.
Common Frosty Fern Problems
Frosty Ferns are sensitive but forgiving once you understand their rhythm. Watch for these common issues:
- Crisp or browning edges: Air is too dry or watering is inconsistent.
- Yellowing foliage: Soil may be waterlogged or lacking drainage.
- Wilting or collapse: Roots have dried out — they need consistent moisture.
- Pale color: Light is too dim or the plant is hungry for nutrients.
With proper humidity and steady watering, they quickly bounce back to their bright, fern-like fullness.
Long-Term Care
With attention to moisture and humidity, Frosty Ferns can live for years as healthy, low-growing houseplants. They don’t outgrow their pots quickly, so repotting is rarely needed — usually every 2–3 years to refresh the soil.
Avoid terracotta pots, which wick away moisture; ceramic or plastic containers help maintain even soil dampness. And remember: they’re more likely to suffer from dryness than overgrowth, so consistent care matters more than frequent changes.
@whiteoakgardens