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How to Grow Rumohra – Leather Fern

Leather fern, Rumohra adiantiformis
Leather fern, Rumohra adiantiformis

Rumohra–commonly called leather fern–bears attractive thick-textured shiny fronds. The fronds are two or three times pinnate at the base and triangular.

Rumohra grows from 20 to 36 inches tall with erect-arching fronds, It is an evergreen fern and easy to cultivate. It is a good choice for a shady border or woodland border; it can be grown in partial to full shade. It is easy to grow indoors but requires a slightly humid situation.

Rumohra is used in the cut foliage trade. It is often used in centerpieces and corsages.

Rumohra is a genus of just one species. About 50 species of epiphytic or terrestrial evergreen ferns were once classified in this genus; they are now classified under the genus Arachniodes. Rumohra is native to cool woodlands in tropical regions of the Southern Hemisphere.

Get to know Rumohra

Plant type: Fern
Growing zones and range: Zones 8-11
Hardiness: Hardy to Zone 8
Height and width: 20 to 60 inches (.5-1.5m) tall and as wide
Foliage: Ovate or triangular, 2- or 3- pinnate, leathery, dark green fronds
Uses: Shady border, woodland garden, container
Common name: Leather fern
Botanical name: Rumohra
Family name: Dryopteridaceae
Origin: Tropical regions of Southern Hemisphere

Leather fern, Rumohra adiantiformis
Leather fern, Rumohra adiantiformis

Where to plant Rumohra

  • Light outdoors: Grow Rumohra outdoors in partial or light, dappled shade.
  • Soil outdoors: Plant Rumohra in moist, humus-rich soil.
  • Light indoors: Provide bright filtered light and moderate humidity.
  • Soil indoors: Grow Rumohra epiphytically on bark or in shallow pots in a mix of 1 paret each of loan, medium-grade bark, and charcoal, 2 parts shapr sand, and 2 parts coarse leaf mold.

When to plant Rumohra

  • Set container-grown Rumohra outdoors in spring.

Planting and spacing Rumohra

  • Space Rumohra 20 to 60 inches (.5-1.5m) apart.

How to water and feed Rumohra

  • Water and mist Rumohra regulalry.
  • Fertilize Rumorha with a half-strength balanced liquid fertilizer monthly,

Rumohra care

  • Where not hardy, grow Rumohra in a warm greenhouse.

Growing Rumohra as a houseplant

  • Light indoors: Provide bright filtered light and moderate humidity.
  • Soil indoors: Grow Rumohra epiphytically on bark or in shallow pots in a mix of 1 paret each of loan, medium-grade bark, and charcoal, 2 parts shapr sand, and 2 parts coarse leaf mold.

Rumohra pests and diseases

  • Rumohra is prone to fungal leaf spots, blight, and lesion nematode.
  • Caterpillars and aphids can attack Rumohra.

Rumohra propagation

  • Sow spores at 70°F (21°C) as soon as ripe.
  • Separate and replant rooted sections of rhizomes in early summer.

Rumohra varieties to grow

  • Rumohra adiantiformis, leather fern. Evergreen, terrestrial fern; bears ovate or triangular pinnatre, leather dark green fronds; fronds to 36 inches long; plant gros 20 to 60 inches tall and wide.

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