Blog Know your: Ferns

Know your: Ferns

Many ferns have a soft feathery quality that makes a great contrast with other plants - in the garden or indoors.


Top tips for indoor ferns:

Keep them away from heaters, air conditioners and bright sunny windows. Ours love the bathroom!

Maintain humidity around the pot by placing it on a saucer of pebbles and water.

Don’t overwater.

Feed weakly weekly, with a gentle liquid fertiliser.

Keep an eye out for mealy bug - dab with a cotton bud dipped in methylated spirits

 

Maidenhair fern

Adiantum aethiopicum

A traveller on a recent tour has a 40-year-old maidenhair and I’ve killed three in a row! The keys: request a division from a friend with a long-lived plant; find the right position - out of draughts, radical temperature changes and direct light; and keep the mix moist but not wet.

 

Maiden-hair fern. Photo - Mr.ukkrid duangkaew/Shutterstock.com

 

Myers asparagus fern

Asparagus densiflorus ‘Myersii’

Also called the foxtail fern, and not to be confused with the weedy asparagus fern, this forms a dense clump of bright green twisted spires in morning sun outside or a bright position indoors. Don’t keep it too wet.

 

Asparagus fern

 

Rabbit's foot fern

Davallia fejeensis

A native of Fiji, this fern can be grown outdoors in warm climates or indoors. Its furry rhizomes (yes a bit like a rabbits foot) go on the march, growing over the edge of a pot or enveloping a hanging basket, givinga unique look. Look out for ‘Virginia Blue’, with silvery-blue fronds.

 

Rabbit-foot fern

 

Silver lady fern

Blechnum gibbum ‘Silver Lady’

The silver lady fern is an attractive rosette fern with a neat but lush look, conjuring rainforests and waterfalls, whether used indoors or out. It needs good airflow to thrive.

 

Silver Lady

 

Painted Japanese fern

Athyrium niponicum

Also known as Oriental ladyfern, this fern from eastern Asia will die down in winter and reappear in spring. It has a short, spreading habit and is available in tones of silver, blue, purple or red. Needs light but no direct sun. It loves a bathroom.

 

Painted fern. Photo - Audrey Wilson1/shutterstock.com

 

Tassel fern

Huperzia spp.

Tassel ferns require full shade, consistently high humidity, and plenty of good air movement, making them a challenge. They do best in a ‘bush house’ with the orchids, grown in orchid mix and watered daily through summer.

 

Tassel fern

 

Boston fern

Nephrolepis exaltata

These long-lived ferns are commonly seen for a reason. Their long arching fronds make them popular indoors.They prefer slightly humid conditions, so place the pot on a tray of gravel and water, in a well-lit, protected position. Beginners should try the lemon button fern, the smallest of the Boston ferns. It gets its name from the lemon-scented, tiny lime-green leaves.

 

Boston fern. Photo - Jim Hammer

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