Lemon Button Fern Plant Care

Nephrolepis cordifolia (L.) C.Presl

Nephrolepis cordifolia is a fern native to the global tropics, including northeastern Australia and Asia. It has many common names including fishbone fern, tuberous sword fern, tuber ladder fern, erect sword fern, narrow sword fern and ladder fern, and herringbone fern.

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Water

Every 7–10 days

Light

Bright indirect to low light

Temp

60–75°F

Humidity

50–70%

What Is the Lemon Button Fern?

Lemon Button Fern (Nephrolepis cordifolia) belongs to the Nephrolepidaceae family within the Nephrolepis genus. Lemon Button Fern is native to the global tropics, including northeastern Australia and Asia. Lemon Button Fern is also known as Tuber Ladder Fern, Fishbone Fern, Sword Fern.

Lemon Button Fern displays a lush, spreading fern growth habit, reaching up to 2.5 inches tall with a spread of approximately 3 inches. Lemon Button Fern produces non-flowering.

Leaf size: approximately 24 inches.

How Often Should You Water a Lemon Button Fern?

Nephrolepis cordifolia 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.

Watering Frequency

Every 7–10 days

Let soil partially dry between waterings

What Light Does the Lemon Button Fern Need?

Lemon Button Fern thrives in bright indirect to low light light conditions. The optimal light range is 100–500 lux. Avoid placing Lemon Button Fern in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Bright indirect to low light

100–500 lux

What Temperature and Humidity Does the Lemon Button Fern Prefer?

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

Temperature

60–75°F

Humidity

50–70%

What Soil Mix Works Best for a Lemon Button Fern?

Rich, well-draining potting mix with peat moss and perlite. Good drainage is essential for Lemon Button Fern to prevent waterlogging, which leads to root rot and fungal issues.

How Do You Repot a Lemon Button Fern?

Repot every 1-2 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.

How Do You Propagate a Lemon Button Fern?

Lemon Button Fern can be propagated through division, spores. Similar propagation techniques also apply to boston fern plant care, which shares the same genus.

Fertilizing

Every 6 months

During the growing season

Is the Lemon Button Fern Toxic to Pets and Children?

Non-Toxic

Non-toxic to humans and pets

What Pests and Diseases Affect the Lemon Button Fern?

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

What USDA Hardiness Zone Does the Lemon Button Fern Need?

Lemon Button Fern grows outdoors in USDA Zone 8b – 11b. Native to the global tropics, including northeastern Australia and Asia, Lemon Button Fern is adapted to warm climates. In cooler regions, grow Lemon Button Fern as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 8b – 11b

Keep exploring plants

Lemon Button Fern is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Nephrolepis genus — compare its care with other Nephrolepis species on PlantoScan.

Lemon Button Fern thrives in bright light and direct sun — see other bright-light plants.

More Nephrolepis Species

Other Nephrolepis species in PlantoScan's care catalogue share similar watering, light, and soil preferences:

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