Othonna euphorbioides (Caudex)

Othonna euphorbioides is an unusual caudiciform succulent native to very exposed habitats, where it grows in narrow crevices of solid granite rock. It naturally occurs in hard-to-access locations exposed to wind and strong temperature fluctuations. During its main growth period in the wild, which usually falls between May and August, conditions are cool and temperatures can occasionally drop below freezing. The species name refers to the plant’s resemblance to some spiny succulent euphorbias.

Leaves appear in small tufts at the tips of stems, set among compact clusters of spines. They are light green and covered with a fine whitish, hairy coating, and are seasonal in nature, drying up and dropping as the season progresses. The plant has a caudiciform growth habit and forms a low, miniature, spiny succulent shrub.

The flowers are small, inconspicuous, and yellow-green in color. They appear either at the beginning or toward the end of the growth period.

Othonna euphorbioides has its main growth phase during short days and often behaves as a winter-growing species. It requires a very well-draining substrate and careful watering adjusted to its seasonal growth cycle. This is a highly interesting and uncommon succulent for growers looking for an unusual caudiciform plant with a strong character.