Asplenium antiquum ‘Osaka’

Family: Aspleniaceae

Asplenium antiquum ‘Osaka’ is a gorgeous, tender fern that produces these absolutely fabulous undulating evergreen fronds.  This tender fern makes a superb houseplant!  Asplenium antiquum ‘Osaka’ has an architectural elegance, which compliments a wide variety of home decor styles.  I love these ferns; they’re so handsome and elegant, with magnificent fresh leaf-green, ruffled fronds.

When placing your fern, choose a position where Asplenium antiquum ‘Osaka’ can enjoy fairly bright, but indirect light.  For optimum healthy, green growth, avoid harsh or intense light and very deep shade and provide your fern in a very humid environment.  A light, warm and humid bathroom would provide the ideal ambiance required to grow this Asplenium to its best advantage, but your fern could be very happy in another room; providing you can provide a warm location that enjoys soft, bright light.  Avoid growing Asplenium antiquum ‘Osaka’ on a window sill above a radiator, as the dry heat from below will be very detrimental to your fern.  Instead, grow this fern in a warm and humid environment, away from doorways or areas that endure cold draughts and sudden changes in temperature.

To increase the humidity levels around your fern, you could group this Asplenium antiquum ‘Osaka’ with other ferns and houseplants.  It’s important to mist your plants with rainwater every few days, more often – if you can, especially during the spring and summer months.

Spring is the best time to pot up your Asplenium antiquum ‘Osaka’ fern.  These ferns thrive when potted in good quality, peat-free compost.  When potting up your fern, select a container with drainage holes at the base, to allow water to escape out of the bottom of the pot.  This fern doesn’t want to sit in a pool of water.

Asplenium antiquum ‘Osaka’ will require more frequent waterings in spring and summertime, when the compost should be kept moist, but remember to water your fern throughout the year.  Check your fern’s compost to see that the growing media has dried out a little, before you water.  During the winter months, it’s a good idea to wait until your Asplenium’s compost has started to dry out before you water again.  Rainwater is my preferred choice of water to use to irrigate ferns and houseplants, but use tap water, if you’re unable to collect any rainwater.  Take care to ensure that your fern never sits in water.

This is a tender fern with a minimum temperature of 13C (55F).  My Asplenium antiquum ‘Osaka’ is very happy growing indoors, where my room temperatures usually range from 17-21C (62-69F), in wintertime, and from 18-28C (64-82F), in summertime.

Asplenium antiquum ‘Osaka’ grows up to around 60cm (2ft) tall.

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