Asplenium antiquum 'Osaka'
Asplenium antiquum 'Osaka'
Asplenium antiquum 'Osaka'
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Asplenium antiquum 'Osaka'

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Asplenium antiquum is an epiphytic fern and part of the Aspleniaceae family. Its native range is its native range is China (Fujian) to Temp. E. Asia. Fronds are strap shaped and shiny, bright green with dark brown midribs and wavy leaf margins. The fronds grow in an inverted cone shape; there is a nest-like centre that collects falling debris. Sporangia forms in clusters on the undersides of fronds.

Genus name comes from the New Latin for spleenworts and the specific epithet comes from the Latin antiquus meaning old.

Pot: ø 26cm.

Height: Approximately 60cm from base of pot

Light: Bright indirect light, meaning the plant sees the sun for 0-4 hours per day - this could be through trees or a translucent curtain, it’s important for the plant to see the sky in order to thrive. Avoid harsh, direct sun. Grows well in bright north-facing windows.

Water: Asplenium antiquum prefer their substrate to be consistently moist, allow the top inch of the mix to dry out. Pour water slowly over the top of the substrate and allow the water to pass through the drainage holes; avoid pouring water into the heart of the plant. 

Potting mix: A rich well draining mix with amendments of leaf mould, sand and grit. These plants only have shallow root systems so it is important to keep the rhizomes at the substrate surface.

Fertilising: Feed your plant every few waterings during the growing season or when you observe active growth. You can dilute fertiliser to half the recommended amount but never add more.

Temperature: Ideally 18-21°C, no cooler than 15°C.

Humidity: This plant would prefer higher humidity. You can increase humidity by placing the plant on a watered pebble tray or using a humidifier.

Asplenium are non-toxic.