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PlantFiles: Lemon Button Fern, Erect Sword Fern, Ladder Fern, Tuber Fern, Tuberous Sword Fern
Nephrolepis cordifolia 'Duffii'

Family: Polypodiaceae
Genus: Nephrolepis (nef-roh-LEP-iss) (Info)
Species: cordifolia (kor-di-FOH-lee-uh) (Info)
Cultivar: Duffii

2 vendors have this plant for sale.

7 members have or want this plant for trade.


6-12 in. (15-30 cm)
12-18 in. (30-45 cm)

6-9 in. (15-22 cm)

USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Light Shade


Bloom Color:

Bloom Time:

Grown for foliage

Other details:
This plant is suitable for growing indoors
Requires consistently moist soil; do not let dry out between waterings
Suitable for growing in containers

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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3 positives
No neutrals
No negatives

Gardeners' Notes:

Positive knurts On Aug 21, 2014, knurts from Richmond, VA wrote:

This is a happy plant! I've had no troubles with keeping it, out of direct sun, indoor or when I hang it outdoor in the summer. Misting helps, especially indoors.

***Do not confuse it with Button Fern 'Pellaea rotundifolia'. Requirements are different.

Positive GreeneLady On Apr 2, 2009, GreeneLady from Oak Island, NC (Zone 8a) wrote:

Positive MotherNature4 On Nov 14, 2005, MotherNature4 from Bartow, FL (Zone 9a) wrote:

This charming little fern isn't the easiest to grow. Don't ever let it dry out or it will be G o n e !


This plant has been said to grow in the following regions:

Bellflower, California
Bloomington, California
El Cerrito, California
Stanford, California
Bartow, Florida
Hollywood, Florida
Jacksonville, Florida
Harlem, Georgia
Richmond, Texas
Kalama, Washington

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