# Blue Cereus (Browningia hertlingiana)

> Native to the dry inter-Andean valleys of Peru, this architectural columnar cactus is celebrated for its breathtaking glaucous metallic-blue epidermis. Distinct vertical ribs support formidable golden-yellow to brownish spines that form a stunning contrast against the intense cerulean body. With maturity, it attains a massive tree-like stature, developing its most saturated blue coloration when provided with intense solar radiation.

- **Scientific Name:** *Browningia hertlingiana*
- **Botanical Family:** Cactaceae
- **Care Difficulty:** Moderate (2/5)
- **Cold Hardiness:** 0°C (USDA Zone 10a)
- **Pet Safety / Toxicity:** Pet-Safe (Non-toxic to cats and dogs)
- **Canonical URL:** https://sukulentler.com/en/species/browningia-hertlingiana
- **Markdown Source:** https://sukulentler.com/en/species/browningia-hertlingiana.md
- **Botanical Photo:** https://sukulentler.com/assets/images/articles/species_browningia_hertlingiana.webp?v=1794618079

## Light & Sun Exposure

Requires full, direct sunlight for at least 6-8 hours daily; the vibrant blue glaucous farina only develops properly under intense light.

## Watering Schedule & Method

Follow a strict soak-and-dry protocol during the warm growing season. Cease watering entirely or minimize to a light sip during cool winter dormancy to prevent root rot.

## Soil & Gritty Mix Formula

Highly porous mineral mix comprising 70% pumice, lava rock, and coarse quartz grit with 30% low-organic cactus soil.

## Cold Tolerance & Overwintering

0°C (USDA Zone 10a)

## Propagation Methods

Propagated reliably from seed in spring, or via mature stem cuttings that have been allowed to callus thoroughly for several weeks before rooting.

## Available Language Editions

- [TR: Mavi Sütun Kaktüs (Browningia hertlingiana)](https://sukulentler.com/tr/turler/browningia-hertlingiana.md)
- [DE: Blauer Säulenkaktus (Browningia hertlingiana)](https://sukulentler.com/de/arten/browningia-hertlingiana.md)
- [ES: Cactus Azul de Perú (Browningia hertlingiana)](https://sukulentler.com/es/especies/browningia-hertlingiana.md)