Cereus forbesii spiralis

The Cereus Forbesii Spiralis is one of the most visually surprising cacti thanks to its helical silhouette that seems to defy the laws of nature. Also called the “spiral cactus”, this fascinating specimen draws attention with its twisted ribs that rise in a spiral, as if the plant had started to dance.

This rare variety of the Cereus genus is a natural mutation of the classic Cereus Forbesii. Its sculptural appearance, with sinuous and regular edges, makes it a true botanical work of art. Young plants are often straight, then over time their growth takes on a spiral shape, with 5 to 9 well-defined ribs armed with small, fine but not very aggressive spines.

This cactus can reach 2 meters in height in open ground under warm climates, but remains more compact in a pot. It is highly sought after by collectors for its unusual shape and relatively fast growth (for a cactus). A rarity in the world of succulents!

The Cereus Forbesii Spiralis originates from South America, more precisely from the semi-desert regions of Argentina and Bolivia. It is found in hot and dry areas, where the soil is well drained and temperature variations between day and night are significant.

To maintain an upright habit and promote a regular spiral, this cactus needs maximum sunlight:

🌞 Full sun: 6 to 8 hours of direct light per day.

⛱️ Light afternoon shade: in very hot climates, light shading in the afternoon can prevent sunburn, especially for young plants.

💡 Tip: rotate the pot a quarter turn every month to obtain a well-balanced spiral.

The Cereus Forbesii Spiralis is a relatively easy cactus to care for, but its substrate must dry completely between waterings.

🌱 Spring / summer: generous watering every 15 to 20 days, depending on temperature.

🍂 Autumn / winter: greatly reduce or completely stop watering if the plant is dormant in a cool place.

⚠️ Important: too much moisture can cause collar rot. Add pumice stone or pozzolana to maximize drainage.

The Cereus Forbesii Spiralis enjoys warm climates but tolerates temperature variations quite well:

🌞 Ideal temperature: between 22°C and 35°C.

❄️ Cold tolerance: withstands short drops down to 0°C, but without moisture. Below 5°C, it is best to bring the cactus indoors.

🏡 Indoor cultivation: very suitable for a veranda or a well-exposed windowsill. Avoid cold drafts in winter.

🪨 The substrate must be perfectly draining.

Ideally mix: 1/3 cactus potting soil + 1/3 pumice stone or perlite + 1/3 pozzolana for aeration.

The flowering of the Cereus Forbesii Spiralis is rare in pots, but impressive when it occurs:

🕐 Period: summer, often at the end of the day or at night.

🎨 Flowers: large, funnel-shaped, white or pale pink, very fragrant.

🍓 Fruits: if pollination is successful, round and edible fruits, reminiscent of prickly pear.