Euphorbia submammillaris f. variegata | Variegated Corn Cob Euphorbia
€10,60
🌱 Morphology
It looks like a small sculpture carved in ivory and green, as if a corn cob had been born in the middle of the desert and someone had painted its ribs cream. The variegation makes each specimen a one-of-a-kind piece: areas with less chlorophyll can run along the stems, forming white, yellow, pink, or even reddish patterns that change in intensity depending on the light, temperature, and the state of the plant.
It forms a succulent clump, generally compact and densely branched, with erect, pale green to whitish stems featuring 7–10 very distinct ribs. The tubercles, arranged in vertical rows, give it that characteristic appearance reminiscent of a corn cob. The stems can reach approximately 15–30 cm in height and about 1.2–4 cm in thickness. The leaves are very small, narrow, and ephemeral; they appear on the growing tips and fall off quickly. Small spines, which are modified and hardened floral structures, develop between the tubercles and can reach about 2 cm. Like all Euphorbia, it produces white latex when injured. The variegated form has areas with reduced chlorophyll, so it must be protected from excessively sudden sun exposure.
🌍 Distribution, habitat, and family
The taxon is related to Euphorbia mammillaris, a species endemic to South Africa, distributed between Albertinia and Grahamstown, in the Eastern Cape and Western Cape provinces. It inhabits stony plains and hillsides, among scrubland and on alluvial deposits or shale soils, within Fynbos and Cape thicket environments. It belongs to the Euphorbiaceae family. SANBI considers Euphorbia submammillaris a synonym of Euphorbia mammillaris, and Kew also treats E. mammillaris var. submammillaris as a synonym of E. mammillaris.
❄️ Temperature — USDA Zone 9b–11b
It tolerates minimum temperatures down to −4 ºC if it remains completely dry, is well-acclimated, and the exposure to cold is brief. For the variegated form, it is especially advisable to avoid the combination of low temperatures, humidity, and tissues with little chlorophyll.
☀️ Lighting
During active growth, it needs intense lighting, with an approximate goal of 18–25 mol/m²/day DLI PAR. The variegated form requires progressive acclimation to direct sun: overly sudden exposure can cause damage to areas with less chlorophyll. High but well-adapted lighting helps keep the stems compact and promotes the expression of its cream, yellow, and pink tones.
💧 Growth cycle and watering
Winter rest.
During the active period, abundant watering is recommended, allowing the substrate to dry out completely before watering again. In winter, it should be kept practically dry, especially when temperatures are low. Rapid drainage is essential to avoid root problems.
🌸 Flowering
It produces small cyathia at the tips of the stems, generally reddish in tone, which can appear during the growing period. In its natural range, Euphorbia mammillaris flowers mainly between May and October; in Madrid, it can do so during the warm months, especially from late spring through summer.
🌿 Nutrition
During the active growth period, a specific fertilizer for succulents is recommended, with a high content of assimilable calcium, such as Desert CHOICE® Succulents, applied once a month when watering.
This is an inimitable xerophyte grown in Madrid in a technological square pot and with the substrate activated with mycorrhizal fungi and biofungicides.
📏 S -> 9cm x 9cm
* As this is an online purchase, the appearance of the sent specimen may vary slightly from the product image. The measurements of the plant are specified in the photo description, but this may also vary slightly because, after all, it is a living being! Each of the plants at Desert CITY has unique characteristics.
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