Button Fern Plant Care

Button Fern (Pellaea rotundifolia) belongs to the Pteridaceae family within the Pellaea genus. Button Fern is native to New Zealand. Button Fern is also known as Round-leaved cliffbrake.

Button Fern displays a low rosette, spreading growth habit, reaching up to 1.5 inches tall with a spread of approximately 2 inches. Button Fern produces non-flowering.

Leaf size: approximately 12 inches.

Pellaea rotundifolia requires watering every 7–10 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.

Button Fern thrives in bright indirect light light conditions. The optimal light range is 100–200 lux. Avoid placing Button Fern in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Pellaea rotundifolia grows best at temperatures between 60°F and 75°F. Button Fern prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.

Well-draining, slightly acidic soil mix with added organic matter like peat moss or compost. Good drainage is essential for Button Fern to prevent waterlogging, which leads to root rot and fungal issues.

Repot every 2-3 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.

Button Fern can be propagated through spores, division of rhizomes.

Button Fern is susceptible to spider mites, scale insects. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Button Fern grows outdoors in USDA Zone 10a – 12b. Native to New Zealand, Button Fern is adapted to warm climates. In cooler regions, grow Button Fern as a houseplant or bring it indoors before the first frost.