Myrtillocactus Geometrizans Fukurokuryuzinboku
The Myrtillocactus Geometrizans Fukurokuryuzinboku is a rare and astonishing mutant form of the Myrtillocactus Geometrizans, originating from Mexico but popularized in Japan. Nicknamed “Boob cactus” because of its bumpy ribs shaped like small protuberances, this cactus immediately attracts attention with its unique and sculptural appearance.
Unlike the classic or crested form, the Fukurokuryuzinboku features regular swellings along its ribs, recalling a succession of “balloons” or “fleshy beads”. It is particularly sought after by collectors for its graphic and sensual appearance, almost anthropomorphic.
This cactus is a natural mutation of the Myrtillocactus Geometrizans, a species native to the semi-desert areas of Mexico.
Its Japanese name comes from mythology: "Fukurokuju" (deity of longevity) and "Ryujin" (dragon god of the seas), which gives it a mystical and good-luck aura in Japanese culture.
The Myrtillocactus Geometrizans Fukurokuryuzinboku is a great lover of light:
🌞 Exposure: full sun, minimum 5 to 6 hours per day
🌤️ Tip: light shade during the hottest hours of summer will prevent sunburn
🌞 Exposure: full sun, minimum 5 to 6 hours per day
🌤️ Tip: light shade during the hottest hours of summer will prevent sunburn
Like all Myrtillocactus, it prefers dry substrates between two waterings:
🌱 Spring / summer: water every 2 to 3 weeks if the substrate is dry
🍂 Autumn / winter: no watering below 12°C
⚠️ Excess water is the first cause of rot in this species!
🌱 Spring / summer: water every 2 to 3 weeks if the substrate is dry
🍂 Autumn / winter: no watering below 12°C
⚠️ Excess water is the first cause of rot in this species!
The Fukurokuryuzinboku is more sensitive to cold than its classic version:
🌡️ Ideal range: 20–30°C
❄️ Tolerance threshold: minimum 5°C, provided the substrate is perfectly dry
🏠 Wintering: sheltered from cold and humidity in a bright room
🌡️ Ideal range: 20–30°C
❄️ Tolerance threshold: minimum 5°C, provided the substrate is perfectly dry
🏠 Wintering: sheltered from cold and humidity in a bright room
To avoid water stagnation, a very well-draining mineral substrate is required:
🪨 Ideal mix: 50% pumice + 25% pozzolana + 25% cactus potting soil
🪨 Ideal mix: 50% pumice + 25% pozzolana + 25% cactus potting soil
The flowering of the Myrtillocactus Geometrizans Fukurokuryuzinboku is rare but delicate:
🌸 Season: between late May and July
🎨 Color: discreet pale green to cream flowers
🕑 Duration: very short, generally 1 to 3 days
💡 Flowering appears only on well-established specimens, often in greenhouses or very hot climates
🌸 Season: between late May and July
🎨 Color: discreet pale green to cream flowers
🕑 Duration: very short, generally 1 to 3 days
💡 Flowering appears only on well-established specimens, often in greenhouses or very hot climates
FAQ - Myrtillocactus Geometrizans Fukurokuryuzinboku
How to recognize excess moisture in Myrtillocactus Geometrizans Fukurokuryuzinboku?
Excess water shows as softening at the base, black or translucent spots and sometimes collapse of the cactus. It is essential to let the substrate dry completely between waterings.
How to know if Myrtillocactus Geometrizans Fukurokuryuzinboku lacks water?
Slight dehydration can be noticed by less turgid ribs, partial collapse or duller color. Moderate watering is then sufficient if temperatures are suitable.
Is Myrtillocactus Geometrizans Fukurokuryuzinboku suitable for indoor growing?
Yes, but only in a very bright location (south exposure or under grow light). Without direct light, growth will slow and the shape will be less aesthetic.
Should fertilizer be used for Myrtillocactus Geometrizans Fukurokuryuzinboku?
Yes, in spring and summer, use a special liquid fertilizer for cacti diluted in watering water once a month to stimulate growth without excess.
What type of substrate to choose for Myrtillocactus Geometrizans Fukurokuryuzinboku?
A very well-draining substrate is essential: mix 50% pumice, 25% pozzolana and 25% cactus soil.
Does Myrtillocactus Geometrizans Fukurokuryuzinboku bloom easily?
No, flowering is rare, especially in pots. It may occur in summer on mature specimens in warm climates or in a greenhouse.
Is Myrtillocactus Geometrizans Fukurokuryuzinboku an easy plant?
Yes, provided the basics are respected: full sun, draining substrate, moderate watering. It is robust but sensitive to excess moisture.
How to repot a Myrtillocactus Geometrizans Fukurokuryuzinboku?
Use gloves to avoid injury, choose a slightly larger pot and fill with a mix of pumice and cactus soil. Do not water for 7 days.
Can Myrtillocactus Geometrizans Fukurokuryuzinboku be propagated by cuttings?
It is very difficult. This mutant form is generally propagated by grafting, as it does not root well on its own roots.
What is the minimum temperature tolerated by Myrtillocactus Geometrizans Fukurokuryuzinboku?
It does not tolerate frost. Bring it indoors when temperatures drop below 8 °C, and provide a dry and bright winter rest.
