General Plant Information (Edit)
Plant Habit: Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Minimum cold hardiness: Zone 9a -6.7 °C (20 °F) to -3.9 °C (25 °F)
Fruit: Pops open explosively when ripe
Flowers: Other: In the genus Euphorbia, the flowers are reduced in size and aggregated into a cluster of flowers called a cyathium (plural cyathia). This feature is present in every species of the genus Euphorbia but nowhere else in the plant kingdom.
Flower Color: White
Bloom Size: Under 1"
Underground structures: Taproot
Suitable Locations: Xeriscapic
Dynamic Accumulator: B (Boron)
Resistances: Drought tolerant
Toxicity: Other: All members of the genus Euphorbia produce a milky sap called latex that is toxic and can range from a mild irritant to very poisonous.
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots

Common names
  • Euphorbia

Photo Gallery
Location: In my garden, Falls Church, VA
Bare root plant
Location: My Garden in Fort Worth, TX
Date: 2020-02-18
Location: My Garden in Fort Worth, TX
Date: 2020-02-24
Location: In my garden, Falls Church, VA
Location: My Garden in Fort Worth, TX
Date: 2020-02-24
Location: At our garden - San Joaquin County, CA
Date: 2016-06-21
Close-up of blooms of Euphorbia inermis
Location: At our garden - San Joaquin County, CA
Date: 2016-06-18
Newly acquired Euphorbia inermis
Location: Kalama, wa
  • Uploaded by Joy
Location: NYBG 
Date: June 14 22
  • Posted by Baja_Costero (Baja California - Zone 11b) on Dec 13, 2017 10:31 PM concerning plant:
    South African succulent Euphorbia with white, fragrant flowers. One of the largest medusas. Like the others, it grows a central "head" with many "arms" (the venomous snakes of Greek mythology) radiating outward around it. The stem may grow a few inches high and wide, the total width of the plant a foot or so. The arms are relatively thick for this group. The white glands on the cyathia are bifid, with longish processes.

    Best form in strong light. Usually grown from seed. Growth seriously retarded by underpotting. Vulnerable to scale (check the underside of the arms). Excellent landscape plant.

    Very difficult to distinguish from E. huttoniae (formerly a variety of this species) when not in bloom. The nectar glands of huttoniae are usually yellow, never white. Some of the plants on this page may actually be huttoniae, which was recently separated.

    E. huttoniae and inermis are both difficult to resolve from E. esculenta until they have flowered a couple of times.
Plant Events from our members
tarev On June 18, 2016 Obtained plant
Bought from Poots Cactus Nursery, Ripon, CA
MySecretIslandGarden On June 11, 2022 Obtained plant
Mountain Crest
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