How to Grow Lemon Button Fern
Wikimedia Commons
Lemon Button Fern
Nephrolepis cordifolia 'Lemonii'
herbLemon Button Fern is a delicate, compact fern featuring tiny heart-shaped fronds with a distinctive lemon fragrance when brushed or crushed. This tropical houseplant is prized for its ornamental foliage and air-purifying qualities, making it ideal for indoor cultivation. It grows slowly and remains relatively small, making it perfect for terrariums, hanging baskets, and shelf displays.
When should you plant Lemon Button Fern in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Lemon Button Fern timeline · Pittsburgh, PA (Zone 6b)
-
Plant Lemon Button Fern
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Lemon Button Fern
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Lemon Button Fern dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 10-11; best grown indoors in cooler climates
Sign up free to see if Lemon Button Fern grows in your zone — and get a personalized planting timeline.
Get my Lemon Button Fern timeline →Growth Stages
Establishment
2-4 weeksYoung fern with few fronds, establishing root system in new potting medium
Keep soil consistently moist. Avoid moving plant frequently. Provide bright, indirect light and maintain high humidity. Do not fertilize for first month.
Vegetative Growth
3-6 monthsFronds gradually expand and new growth emerges from the crown; lemon scent becomes more pronounced
Maintain consistent moisture and humidity. Feed monthly with diluted liquid fertilizer during growing season (spring/summer). Mist foliage 2-3 times weekly.
Mature Foliage Development
OngoingFern reaches 8-12 inches tall and wide; full lemon fragrance is evident; fronds are dense and full
Reduce fertilizing to every 6-8 weeks. Continue regular misting. Prune any brown or damaged fronds at the base. Humidity is critical—use pebble tray or humidifier.
Maintenance & Division
Annual or as neededMature plant may develop small tubers at the base and can be divided into multiple plants
Repot every 12-18 months into slightly larger container. Divide plantlets in spring for propagation. Remove old fronds to encourage fresh growth.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Increase humidity, mist regularly, spray with neem oil or insecticidal soap weekly until resolved
-
Remove with cotton swab dipped in rubbing alcohol; treat with neem oil or insecticidal soap
-
Prune affected fronds, treat with horticultural oil or neem oil
-
Improve drainage, reduce watering frequency, repot in fresh soil if severe
Uses
Indoor Air Purification
HouseholdLemon Button Ferns effectively remove formaldehyde and other toxins from indoor air, improving air quality naturally. NASA studies confirm ferns are among the best air-filtering houseplants. [source]
Decorative Foliage Arrangements
CraftThe delicate, heart-shaped fronds make excellent additions to floral arrangements, terrariums, and dish gardens. The unique texture adds visual interest to craft projects and displays. [source]
Lemon Fragrance for Infusions
CulinaryDried fronds can be used to create herbal tea blends or as a natural flavoring for baked goods and beverages. The lemon scent makes it a pleasant aromatic herb. [source]
Traditional Herbal Medicine
MedicinalSome traditional herbalists use fern species for mild diuretic and anti-inflammatory properties. Historically used in folk remedies, though clinical evidence is limited. [source]
Humidity Enhancement
HouseholdGrowing Lemon Button Ferns helps increase ambient humidity in indoor spaces through transpiration, benefiting both the plant and surrounding plants. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Lemon Button Ferns are not harvested for crops. Harvest foliage by gently pinching or cutting mature fronds at the base for ornamental arrangements or to encourage bushier growth. Remove brown or yellowed fronds promptly. Brush fronds gently to release the lemon fragrance without damaging them.
Fun Facts
- 🌱 The lemon fragrance that gives this fern its common name becomes more pronounced when the fronds are gently touched or brushed, making it a multi-sensory plant experience.
- 🌱 Lemon Button Fern is one of the few ferns that produces tubers or small plantlets along its rhizomes, allowing easy propagation without spores—a unique trait among most ferns.
- 🌱 This compact cultivar is a cultivated variety of the Boston Fern, deliberately selected for smaller size and improved ornamental qualities, making it more practical for modern homes and offices.
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Lemon Button Fern planting timeline
Tell us your zip code and we'll calculate exactly when to start Lemon Button Fern seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Lemon Button Fern timeline →