Watering schedule

How often to water Ric Rac Cactus (Disocactus anguliger) — the schedule

Also called Ric rac cactus, Fishbone cactus, Zigzag cactus, Fishbone orchid cactus, St Anthony's rik-rak.

More about ric rac cactus

Watering at a glance

Base rhythm	When the top 2-4 cm of compost is dry, roughly every 7-10 days in summer
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	Bright indirect light (just back from a sunny window)

About Ric Rac Cactus

Disocactus anguliger · also called Ric rac cactus, Fishbone cactus · houseplant

The ric rac cactus is an epiphytic jungle cactus from the cloud forests of Chiapas, Mexico, prized for its flat, deeply notched zigzag stems that trail like fishbones. Unlike desert cacti, its defining need is bright but indirect light with a freely draining yet moisture-retentive mix that is watered when the top few centimetres dry out.

Ideal humidity: 40-60%

Watch for — Root rot from overwatering: The single most common killer. Soft, brown, collapsing stems and a sour-smelling mix mean the roots have rotted. Let the top few centimetres dry between waterings, use a gritty free-draining mix, and never let the pot sit in a saucer of water.

The watering schedule, season by season

Ric Rac Cactus 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 ric rac cactus is when the top 2-4 cm of compost is dry, roughly every 7-10 days in summer, 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.

Water thoroughly until it runs from the drainage holes, then let the top 2-4 cm dry before watering again; never leave the pot standing in water, as this is the fastest route to root rot. Being epiphytic it dislikes constantly soggy roots but, unlike desert cacti, should not be left bone dry. Cut watering right back over winter, keeping the mix only just moist.

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 ric rac cactus in seconds.

How to tell ric rac cactus needs water

A calendar is the worst way to water ric rac cactus. 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 ric rac cactus for a day is almost always safer than over-watering it.

Overwatering vs underwatering ric rac cactus

The two failure modes can look alike at a glance, so check the soil weight and wetness before you decide. For ric rac cactus 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 ric rac cactus 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 ric rac cactus; 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 ric rac cactus, 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 ric rac cactus.

Ric Rac Cactus watering — frequently asked questions

How often should I water ric rac cactus?

Water ric rac cactus when the top 2-4 cm of compost is dry, roughly every 7-10 days in 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. Winter: soak far less often — roughly every 2-3 weeks — and always let the roots dry fully in between.

How do I know when ric rac cactus 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 ric rac cactus is the first signal on that list — checking the soil or the plant directly always beats watering by the calendar.

What does an overwatered ric rac cactus 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 ric rac cactus 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 ric rac cactus?

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

Can I use tap water on ric rac cactus?