How to Grow Mother Fern
Wikimedia Commons
Mother Fern
Asplenium bulbiferum
fernMother fern is a delicate evergreen fern native to New Zealand and Australia, prized for its feathery, finely divided fronds and unique ability to produce small bulbils (baby plantlets) along its fronds. The plant earns its common name from these reproductive bulbils that can be propagated to create new plants. It is an excellent choice for indoor gardening and shaded outdoor locations in mild climates.
When should you plant Mother 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 Mother Fern timeline · Pittsburgh, PA (Zone 6b)
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Plant Mother Fern
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Mother Fern
Late summer into fallBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Mother Fern dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 10-11; grown as a houseplant elsewhere
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Get my Mother Fern timeline →Growth Stages
Bulbil Stage
6-8 weeksTiny plantlets develop along the edges and undersides of mature fronds, each with small roots and tiny leaves
Provide high humidity and stable conditions; do not disturb developing bulbils until they are ready to propagate
Rooting Stage
4-6 weeksDetached bulbils develop roots when placed in moist propagation medium and begin producing their first true frond
Keep humidity very high (use a propagation dome or plastic cover); maintain consistent moisture; provide bright indirect light
Establishment Stage
6-8 weeksYoung fern develops 2-3 small fronds and establishes a small rhizome and root system
Gradually acclimate to lower humidity; continue misting; maintain warm temperatures (65-75°F); do not fertilize yet
Vegetative Growth Stage
6-12 monthsFronds lengthen and multiply, becoming more feathery and delicate; plant develops multiple crowns
Maintain high humidity and bright indirect light; water regularly; apply diluted liquid fertilizer monthly during growing season
Mature/Productive Stage
OngoingFronds reach full length (12-24 inches), become dense and lacy, and begin producing bulbils along the frond edges
Continue consistent care; bulbils will develop naturally; can propagate by removing and rooting bulbils or dividing established plants at the rhizome
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity, mist fronds regularly, spray with water or neem oil; isolate affected plant
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Remove with cotton swab dipped in rubbing alcohol; spray with insecticidal soap or neem oil
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Remove manually with brush; spray with horticultural oil or insecticidal soap
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Spray with strong water spray; use insecticidal soap or neem oil for severe infestations
Uses
Ornamental Houseplant
HouseholdMother fern's delicate, feathery fronds make it an elegant indoor plant for low-light rooms, bathrooms, and terrariums. Its graceful appearance adds a tropical, woodland aesthetic to any interior space. [source]
Natural Air Purification
HouseholdLike many ferns, mother fern helps purify indoor air by absorbing toxins and increasing humidity through transpiration. It creates a healthier microclimate in enclosed spaces. [source]
Propagation and Plant Propagation
CraftMother fern is highly valued by plant propagators for its unique bulbil reproduction system, making it an excellent educational and hobby plant. Gardeners enjoy the rewarding process of growing new plants from the parent fern's natural propagules. [source]
Tropical Ecosystem Microcosm
WildlifeIn terrarium settings, mother fern provides shelter and a naturalistic environment for small arthropods and beneficial organisms. Its lush fronds mimic tropical understory conditions. [source]
Harvest Tips
Mother fern is not harvested for food or traditional yields. Instead, propagate by carefully removing mature bulbils from the fronds once they have developed visible root primordia, typically when 2-3 tiny roots are visible. Gently detach and press into moist propagation medium. Alternatively, divide established plants by carefully separating crowns and rhizomes at the base.
Fun Facts
- 🌱 Mother fern earned its name from its remarkable ability to produce baby plantlets (bulbils) along its mature fronds without any male counterpart, much like a mother creating offspring.
- 🌱 A single mature frond can produce dozens of bulbils, each capable of growing into a complete new fern plant, making it one of the most prolific naturally propagating houseplants.
- 🌱 Mother fern is native to New Zealand and Australian cloud forests, where it grows as an epiphyte on tree trunks and branches in humid, shaded environments.
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