Watering schedule

How often to water Drooping Spleenwort (Asplenium flaccidum) — the schedule

Also called Drooping Spleenwort, Weeping Spleenwort.

More about drooping spleenwort

Watering at a glance

Base rhythm	Every 5–10 days; allow surface to approach dryness between waterings
Spring / summer	Spring and summer: soak or dunk the roots/mount thoroughly about once a week, then let them dry almost completely before the next soak.
Autumn	Autumn: lengthen the gap between soaks as light and growth taper off.
Winter	Winter: soak far less often — roughly every 2-3 weeks — and always let the roots dry fully in between.
Light	Medium indirect light (a couple of metres from a window)

About Drooping Spleenwort

Asplenium flaccidum · also called Drooping Spleenwort, Weeping Spleenwort · houseplant

Asplenium flaccidum is a graceful, pendulous fern native to New Zealand, Australia, and the Pacific, producing soft, drooping pinnate fronds that hang elegantly — ideal for hanging baskets or elevated shelves. As an epiphytic or lithophytic species it is adapted to excellent drainage and good air movement. It suits humid, cool-to-intermediate indoor spaces.

Ideal humidity: 50–75%

Watch for — Root rot from overwatering: The most common cause of decline. Because of its epiphytic nature, the roots need air as much as moisture. Ensure the pot has excellent drainage, use a very open mix, and allow the medium to partially dry before re-watering. Remove rotted roots and repot into fresh mix if detected.

The watering schedule, season by season

Drooping Spleenwort grows on bark, not in soil — it wants its roots soaked then fully dried and exposed to air, never kept damp like a potted plant. The base rhythm for drooping spleenwort is every 5–10 days; allow surface to approach dryness between waterings, but the real interval moves with the season, the light and the pot — so treat the figures below as a starting point and always confirm with the plant itself.

Spring & summer (active growth): Spring and summer: soak or dunk the roots/mount thoroughly about once a week, then let them dry almost completely before the next soak.
Autumn (slowing down): Autumn: lengthen the gap between soaks as light and growth taper off.
Winter (rest / dormancy): Winter: soak far less often — roughly every 2-3 weeks — and always let the roots dry fully in between.

As an epiphyte, it tolerates slightly drier conditions than terrestrial ferns. Water thoroughly and allow the top third of the medium to dry before re-watering. Never leave it in a saucer of water. Good drainage is critical — root rot develops rapidly in waterlogged soil.

Want this turned into a live reminder that adjusts to your home and the weather? The Growli watering calculator takes your pot size, light and season and returns a starting interval for drooping spleenwort in seconds.

How to tell drooping spleenwort needs water

A calendar is the worst way to water drooping spleenwort. Check the plant and the soil instead — for this species, look for these signals in order:

Roots turn silvery-grey or chalky instead of green/plump.
The mount or bark medium is bone dry and light.
Leaves or pseudobulbs look slightly wrinkled or less rigid.

The most reliable single check is the first one on that list. When two signals agree, water; when they disagree, wait a day and look again — under-watering drooping spleenwort for a day is almost always safer than over-watering it.

Overwatering vs underwatering drooping spleenwort

The two failure modes can look alike at a glance, so check the soil weight and wetness before you decide. For drooping spleenwort specifically:

Signs you are overwatering

Mushy, brown, hollow roots that have stayed wet too long.
Yellowing, soft leaves at the base.
A persistently wet, never-drying medium.

Signs you are underwatering

Leaves go limp, leathery or accordion-pleated; roots stay grey for long stretches.
Shrivelling pseudobulbs or curling leaves.

Treating drooping spleenwort like a normal houseplant — watering little and often into bark or moss that never dries — suffocates and rots the roots. Soak hard, then let it dry out.

Water quality notes

Rainwater or filtered water is best for drooping spleenwort; many epiphytes are sensitive to softened water and tap-water minerals.

Seasonal and environmental adjusters

Every figure above shifts with the conditions in your home. For drooping spleenwort, the levers that matter most are:

Air movement matters as much as water — roots must dry between soaks to avoid rot.
A bark or mounted medium dries far faster than moss, so the wetter the medium, the longer you wait.
In high humidity you can soak less often; in dry heated rooms, more often but still let it dry.

Pot choice is part of this too — work out the right size with the pot size calculator, since a pot that is too big stays wet long enough to rot the roots of drooping spleenwort.

Drooping Spleenwort watering — frequently asked questions

How often should I water drooping spleenwort?

Water drooping spleenwort every 5–10 days; allow surface to approach dryness between waterings. Spring and summer: soak or dunk the roots/mount thoroughly about once a week, then let them dry almost completely before the next soak. Winter: soak far less often — roughly every 2-3 weeks — and always let the roots dry fully in between.

How do I know when drooping spleenwort needs water?

Roots turn silvery-grey or chalky instead of green/plump. The mount or bark medium is bone dry and light. Leaves or pseudobulbs look slightly wrinkled or less rigid. The single most reliable test for drooping spleenwort is the first signal on that list — checking the soil or the plant directly always beats watering by the calendar.

What does an overwatered drooping spleenwort look like?

Mushy, brown, hollow roots that have stayed wet too long. Yellowing, soft leaves at the base. A persistently wet, never-drying medium. Treating drooping spleenwort like a normal houseplant — watering little and often into bark or moss that never dries — suffocates and rots the roots. Soak hard, then let it dry out.

What are the signs of an underwatered drooping spleenwort?

Leaves go limp, leathery or accordion-pleated; roots stay grey for long stretches. Shrivelling pseudobulbs or curling leaves.

Can I use tap water on drooping spleenwort?