Asplenium platyneuron

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Plant types and subtypes: Ferns, Evergreens

Light Requirements: part-sun, part-shade

Water Use: low

Soil Moisture: dry, moist

Soil Description: acid, average, loam, sand, gravel/rock

Height: 12"-18"

Leaf Color: green

Hardiness Zone: 4, 5, 6, 7, 8, 9, 10

Additional Tags: colonizing, deer resistant, drought tolerant, evergreen, fall interest, naturalizing, ornamental foliage, rock garden plant, shade garden plant, woodland plant

Asplenium platyneuron (ebony spleenwort)
  • Asplenium platyneuron (ebony spleenwort)
  • Asplenium platyneuron (ebony spleenwort)

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Description

Asplenium platyneuron

Also known as:

ebony spleenwort

,

Scientific Synonyms:

Description

Asplenium platyneuron is the largest of spleenworts, with semi-evergreen fertile fronds up to 1 1/2' long, and shorter evergreen sterile fronds that are 2 to 6" long. Leaflets are dark green, and the stipe (central stem) is glossy and deep purple to brown. This is a very elegant fern that forms open, asymmetrical clumps.

Cultivation

Ebony spleenwort is the most adaptable fern in the genus. As other spleenworts, it grows well in rock walls and crevices, but this one is very easy to grow in terrestrial garden conditions. The preference is part-sun or dappled light, and moist to dry well-drained soil. Over watering this fern can lead to crown rot. Zones 4-10

Propagation

Will spread by spores under ideal conditions, but is more easily propagated by rhizome cuttings.

Additional Notes

Although the stipes are very dark, the common name 'ebony spleenwort' refers to its black fibrous roots. Can be confused with Polystichum acrostichoides (Christmas fern).

Native Range & Classification

Recorded County Distribution: USDA data

Native Range:
AL, AR, AZ, CO, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, NE, NH, NJ, NM, NY, OH, OK, PA, RI, SC, TN, TX, VA, VT, WI, WV

USDA Endangered Status:

  • Exploitably Vulnerable: NY
  • Special Concern: ME

Classification

Kingdom Plantae Plants
Subkingdom Tracheobionta Vascular plants
Superdivision
Division Pteridophyta Ferns
Class Filicopsida
Subclass
Order Polypodiales
Family Aspleniaceae Spleenwort family
Genus Asplenium spleenwort
Species Asplenium platyneuron ebony spleenwort