Watering schedule

How often to water Blue Rabbit's Foot Fern (Davallia griffithiana) — the schedule

Also called Griffith's Davallia, Blue Rabbit's Foot Fern.

More about blue rabbit's foot fern

Watering at a glance

Base rhythm	When the top 2-3 cm of the mix is dry, roughly every 5-7 days
Spring / summer	Spring and summer: keep the soil evenly, lightly moist at all times — check every 5-7 days and water before the surface dries.
Autumn	Autumn: growth slows a little, so check every few days rather than daily, but never let the rootball dry out.
Winter	Winter: still keep barely moist — a fern that dries out in a centrally heated room crisps up within a day or two.
Light	Bright indirect light (just back from a sunny window)

About Blue Rabbit's Foot Fern

Davallia griffithiana · also called Griffith's Davallia, Blue Rabbit's Foot Fern · houseplant

Davallia griffithiana is a rabbit's foot fern prized for the silvery, blue-grey furry rhizomes that creep over the pot rim and for finely divided, lacy fronds. The fuzzy surface rhizomes do the water absorbing, so it suits hanging baskets and shallow pots. Easy and forgiving, it likes bright indirect light, steady humidity, and a never-soggy mix.

Ideal humidity: 50-70%

Watch for — Shrivelled or rotting rhizomes: Rhizomes buried in mix or kept soggy rot; left bone dry they shrivel. Keep them on the surface and mist occasionally.

The watering schedule, season by season

Blue Rabbit's Foot Fern is a moisture lover — it never wants to dry out fully, and dry air sheds fronds faster than anything. The base rhythm for blue rabbit's foot fern is when the top 2-3 cm of the mix is dry, roughly every 5-7 days, 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: keep the soil evenly, lightly moist at all times — check every 5-7 days and water before the surface dries.
Autumn (slowing down): Autumn: growth slows a little, so check every few days rather than daily, but never let the rootball dry out.
Winter (rest / dormancy): Winter: still keep barely moist — a fern that dries out in a centrally heated room crisps up within a day or two.

Water onto the mix, not over the furry rhizomes, and let it drain fully. Allow the surface to dry slightly between waterings. The exposed rhizomes also absorb moisture, so they appreciate occasional misting.

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 blue rabbit's foot fern in seconds.

How to tell blue rabbit's foot fern needs water

A calendar is the worst way to water blue rabbit's foot fern. Check the plant and the soil instead — for this species, look for these signals in order:

The very top of the compost feels dry to the touch (do not wait longer than this).
Fronds start to look slightly limp or lose their fresh sheen.
Frond tips begin to pale or curl before going crispy.

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 blue rabbit's foot fern for a day is almost always safer than over-watering it.

Overwatering vs underwatering blue rabbit's foot fern

The two failure modes can look alike at a glance, so check the soil weight and wetness before you decide. For blue rabbit's foot fern specifically:

Signs you are overwatering

Yellowing, mushy crowns and a sour-smelling pot — even a moisture lover rots if waterlogged.
Blackened frond bases at soil level.
Fungus gnats thriving in permanently saturated compost.

Signs you are underwatering

Crispy brown frond tips and edges — the classic dry-air / dry-soil fern signal.
Wholesale frond drop after the rootball shrinks away from the pot sides.
A faded, washed-out look across the whole plant.

Letting blue rabbit's foot fern dry out completely even once browns the fronds irreversibly — they do not green back up. Consistency beats volume.

Water quality notes

Use rainwater or filtered water for blue rabbit's foot fern where you can — ferns are sensitive to chlorine and tap-water minerals, which contribute to brown tips.

Seasonal and environmental adjusters

Every figure above shifts with the conditions in your home. For blue rabbit's foot fern, the levers that matter most are:

Humidity and watering are linked — at 60%+ humidity the soil stays moist longer and you water less.
A plastic or glazed pot holds moisture better than terracotta, which is an advantage for a thirsty fern.
Bottom-watering or a pebble tray keeps moisture even and avoids wetting the crown.

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 blue rabbit's foot fern.

Blue Rabbit's Foot Fern watering — frequently asked questions

How often should I water blue rabbit's foot fern?

Water blue rabbit's foot fern when the top 2-3 cm of the mix is dry, roughly every 5-7 days. Spring and summer: keep the soil evenly, lightly moist at all times — check every 5-7 days and water before the surface dries. Winter: still keep barely moist — a fern that dries out in a centrally heated room crisps up within a day or two.

How do I know when blue rabbit's foot fern needs water?

The very top of the compost feels dry to the touch (do not wait longer than this). Fronds start to look slightly limp or lose their fresh sheen. Frond tips begin to pale or curl before going crispy. The single most reliable test for blue rabbit's foot fern is the first signal on that list — checking the soil or the plant directly always beats watering by the calendar.

What does an overwatered blue rabbit's foot fern look like?

Yellowing, mushy crowns and a sour-smelling pot — even a moisture lover rots if waterlogged. Blackened frond bases at soil level. Fungus gnats thriving in permanently saturated compost. Letting blue rabbit's foot fern dry out completely even once browns the fronds irreversibly — they do not green back up. Consistency beats volume.

What are the signs of an underwatered blue rabbit's foot fern?

Crispy brown frond tips and edges — the classic dry-air / dry-soil fern signal. Wholesale frond drop after the rootball shrinks away from the pot sides. A faded, washed-out look across the whole plant.

Can I use tap water on blue rabbit's foot fern?