Blue Myrtle-cactus
Myrtillocactus geometrizans (Mart. ex Pfeiff.) Console
- light
- Full sun
- water
- —
- tall
- 2.6 m
- wide
- 30 cm
Cactaceae
Also called Bilberry Cactus, Whortleberry Cactus, Bilberry cactus, Blue myrtle-cactus, Blue Myrtle-Cactus
Formerly Cereus aquicaulensis, Cereus garambello, Cereus geometrizans, Cereus gladiator, and 4 more
When it flowers
Flowers January to April in the tropics.
Read from iNaturalist photographs of it in flower. A month counts at 50% of the best month's flowering share (smoothed over three months) and 10% of its flowering count, from at least 100 flowering observations in the band.
If a child, a pet or anyone may have eaten a plant, contact a doctor or vet straight away, or call the National Poisons Information Centre (AIIMS, New Delhi) on 1800 116 117, free and open 24 hours.
Something wrong with it?About it
- Grows as
- TreeKew's checklist, not yet checked
- Climate
- Desert or dry shrublandKew's checklist, not yet checked
- Wild in
- MexicoKew's checklist, not yet checked
- Light
- Full sun (6 h or more)Read from RHS, one source
- Height
- 2.3 m to 3.0 mRead from RHS and Wikipedia, checked: the middle of what its sources sayHalfway between its 2 sources, which differ. Sources differ: RHS 0.5–1 m; Wikipedia 4–5 m
- Spread
- 10 cm to 51 cmRead from RHS, one source
- Flowers
- CreamRead from Wikipedia, one source
- Coldest it survives
- 10 °C (USDA zone 12a)Read from RHS, one source
Not known yet: water, heat, hottest it survives.
Grow it with
Suggested by a rule, not by a gardener: same climate (kew), flowering when this plant does not (inaturalist), and a different shape.
Crown of thornsFlowers May to December, when this does not
Giant milkweedFlowers May to December, when this does not
Mealycup sageFlowers May to November, when this does not
Rush milkweedFlowers May to June, August and October to December, when this does not
Aloe veraFlowers July to December, when this does not
In other languages (12)
- root
- Bastó
- Spanish
- Garambullo, garambullo, padre nuestro
- Japanese
- リュウジンボク
- Chinese (China)
- 龙神木, 越橘仙人掌
- Afrikaans
- rosyntjiekaktus
- Russian
- Миртиллокактус геометрический
- Portuguese
- Cacto-mirtilo
- German
- Heidelbeerkaktus
- Finnish
- sinihärmekaktus
- Slovak
- myrtilokaktus pravidelný
- Swedish
- blåbärskaktus
- Chinese
- 龙神木, 龙神柱
Where this comes from
- iNaturalist, read 2026-10-25, CC0-1.0 (observation counts)
- Wikidata, read 2026-10-25, CC0-1.0
- Kew's checklist, read 2026-10-24, CC-BY-4.0
- RHS, read 2026-10-26, fact, cited
- Wikipedia, read 2026-10-25, fact, cited
- Wikimedia Commons, read 2026-10-25, CC BY-SA 4.0
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- iNaturalist, read 2026-10-25, CC BY
- 3D model: Myrtillocactus geometrizans (built for Vanagrha) by Vanagrha, own
A fact “checked by a majority of its sources” was settled by a vote of the pages it was read from, not by a person reading it; one marked “one source” rests on that page alone. Anything else not marked checked has not been checked yet. Where nothing is known, the page says so rather than guess.