Water
Allow the soil to dry out completely between waterings. Overwatering is a common cause of root rot. In winter, reduce watering significantly to mimic its dormant period.
Use well-draining soil and water thoroughly when dry.
Also known as Barbed-Wire Cactus · Barbwire Acanthocereus · Barbwire Apple-Cactus
Triangle Cactus (Acanthocereus tetragonus) is a sprawling cactus with triangular, segmented stems, producing showy white flowers and red fruits. It thrives in warm climat
At-a-glance light, water, soil, and growing conditions from plant data
High
75% intensity
Prefers full sun to partial shade. Can tolerate some shade but may become leggy.
Infrequent
25% intensity
Allow soil to dry out completely between waterings. Reduce drastically in winter.
Well-draining cactus or succulent mix
50% intensity
Moderate
50% intensity
Enjoys warm temperatures during the growing season (20-30°C). Tolerates cooler temps in winter (10-15°C). Protect from frost.
Low
25% intensity
Feed sparingly with a balanced liquid cactus fertilizer diluted to half strength during spring and summer.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
Non-toxic
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Allow the soil to dry out completely between waterings. Overwatering is a common cause of root rot. In winter, reduce watering significantly to mimic its dormant period.
Use well-draining soil and water thoroughly when dry.
Prune to maintain shape or remove damaged or diseased stems. Use a clean, sharp knife or pruners. Allow cut surfaces to callus over for a few days before replanting or leaving exposed to prevent rot.
Pruning can also encourage branching.
Easily propagated from stem cuttings. Allow cuttings to dry and callus for several days to a week before planting in well-draining cactus mix. Roots typically form within a few weeks. Water sparingly until established.
Repot every 2-3 years or when the plant outgrows its container, preferably in spring. Use a gritty, well-draining cactus potting mix.
Choose a pot that is only slightly larger than the current one to avoid excess moisture retention.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Triangle Cactus (Acanthocereus tetragonus)
Where Triangle Cactus (Acanthocereus tetragonus) is found

Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Caryophyllales |
| Family | Cactaceae |
| Genus | Acanthocereus |
| Species | Acanthocereus tetragonus |
Similar in genus Acanthocereus
Answers based on plant encyclopedia data