How often should I water it?

Water deeply but infrequently, allowing the soil to dry out completely between waterings.

Does it need full sun?

Yes, it thrives in bright, direct sunlight for most of the day.

Plant guide

Peruvian apple cactus.

Cereus repandus

Pronounced SEER-ee-us ree-PAN-dus

Also known as Apple Cactus, Candelabra cactus, Peruvian apple cactus, Sweetpotato cactus, giant club cactus, hedge cactus

Venezuelan apple cactus — Photo by Robert Guralnick (CC BY) via iNaturalist

This impressive cactus grows into a tall, tree like structure with beautiful, ribbed stems. It is a fantastic choice if you want a bold architectural statement in a sunny spot. You will love how it brings a desert vibe right into your home.

Another photo of Peruvian apple cactus — Photo by James C. Davis (CC BY-SA) via iNaturalist

At a glance

Care level: Easy
Plant type: Succulent
Light: Full sun
Indoor light: Direct sun
Water: Every 14 to 30 days
Mature size: 15 to 20 feet
Growth rate: Medium
Hardiness: USDA 10 to 12
Bloom time: Late spring to summer

Care

Give this cactus plenty of sun and let the soil dry out completely between waterings. Watch for shriveling stems, which means it is thirsty, or mushy spots, which indicate too much water. It thrives when you mostly leave it alone.

Watering: Water only when the soil is bone dry throughout the pot.
Feeding: Feed with a balanced cactus fertilizer during the active growing season.
Pruning: Prune only to remove dead or damaged sections using sterilized tools.
Repotting: Repot when the plant becomes top heavy or outgrows its current container.
Soil: Well draining cactus mix
Soil pH: 6.0 to 7.5
Temperature: 5 to 40°C
Humidity: 10 to 40%
Drought tolerance: High
Lifespan: Perennial, can live for several decades.
Fragrance: Strong
Deer and rabbits: High

Signs it needs repotting

Roots growing out of the drainage holes
The plant becomes top-heavy and unstable
Growth slows significantly during the active season

Safety

People: The plant is generally non-toxic, but the sharp spines can cause physical injury.
Pets: This plant is generally considered non toxic to cats and dogs.
Children: Keep this plant away from small children due to the extremely sharp, long spines that can cause painful injuries.
Contact allergens: The spines can cause mechanical skin irritation and potential infection if they puncture the skin.
Airborne allergens: There is no significant respiratory allergen risk associated with this cactus.
Edibility: Ensure you have correctly identified the plant before consuming the fruit, as some ornamental cacti can cause digestive upset.

How to identify it

Tall columnar growth habit
Prominent vertical ribs
Sharp spines along ridges
Blue green waxy stem surface

Height: 3 to 6m
Spread: 1.5 to 3m
Leaves: blue-green, grey-green, evergreen
Flowers: white, cream, 10 to 15cm
Fruit: red, yellow, purple, Late summer to autumn

Problems to watch for

Mealybugs · Small white cottony insects that suck sap from the stems.
Root rot · Fungal decay caused by overly wet soil or poor drainage.

By symptom

Plant problems by symptom

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Growing it

Propagation: cuttings, seed
When to plant: spring, summer
Overwintering: Move the plant indoors or to a protected area if temperatures drop near freezing. Keep it dry during the winter months to prevent rot.
In containers: It grows well in large, heavy pots that prevent tipping, requiring a minimum 30 centimeter diameter pot for young plants.

Stem Cuttings

1. Cut a healthy stem segment during the growing season.
2. Allow the cut end to callous over in a dry, shaded spot for one week.
3. Insert the calloused end into a well-draining cactus potting mix.
4. Keep the soil barely moist until roots develop.

Group this cactus with other succulents that prefer the same dry, well-draining soil conditions to prevent overwatering.

Grows well with

Aloe · They share similar requirements for sun and low water.
Agave · This plant provides a nice structural contrast while needing identical care.

Similar species

Saguaro · It shares the iconic columnar growth habit but grows much slower.

Science

Family: Cactaceae
Genus: Cereus
Order: Caryophyllales
Class: Magnoliopsida
Native range: South America, specifically regions in the Caribbean and northern South America.
Conservation: This species is not currently listed as endangered or threatened in its native range.

It survives in arid, rocky environments by storing water in its thick, succulent stems.

Value to wildlife: nectar source, provides fruit for birds
Pollinators: bees, moths, bats
Uses: ornamental specimen, edible fruit, living fence, xeriscaping

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 5/9
Soil reaction: 6/9
Light: 8/9
Temperature: 8/9
Moisture: 2/9
Nutrients: 3/9

Taxonomy resolved against GBIF.

Questions people ask

How often should I water it?: Water deeply but infrequently, allowing the soil to dry out completely between waterings.
Does it need full sun?: Yes, it thrives in bright, direct sunlight for most of the day.

Where the name comes from

The name Cereus comes from the Latin word for wax candle, referring to the tall, columnar shape of the stems.

Good to know

It is often called the Peruvian Apple Cactus.
The fruit is known as pitaya or Peruvian apple in some regions.
It can grow quite rapidly in ideal conditions.
The stems are often used as living fences in its native habitat.
It is highly tolerant of salt spray near coastal areas.

Also in

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This guide was generated with AI on October 29, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.