Melocactus bahiensis

Melocactus bahiensis is a globular cactus native to Brazil, recognisable by its reddish woolly cephalium, which appears at maturity and produces small pink to red flowers. Compact and ornamental, it is appreciated indoors for its unique habit and slow growth. Easy to grow in pots, it requires a well-draining substrate and a bright exposure with direct sunlight.

Melocactus bahiensis belongs to the Cactaceae family and naturally grows in the dry and rocky regions of Bahia State, Brazil. It develops a globular body, reaching about 15 to 25 cm in height and 10 to 20 cm in diameter. Its dark green body is marked by well-defined ribs, bearing woolly areoles from which thin, rigid, brownish to greyish thorns emerge. At maturity, after several years of cultivation, it produces a cylindrical structure called a cephalium on its top, covered with dense reddish to whitish hairs, which continues to grow throughout its life. It is on this cephalium that small tubular pink to red flowers can appear. Indoors, the plant flowers less easily.

Melocactus bahiensis should preferably be placed in full sun, near a south or southwest-facing window. It appreciates temperatures between 20 and 30 °C, but does not tolerate cold and must be kept above 10 °C in winter. A very well-draining substrate, composed of cactus compost, coarse sand, and perlite, is essential to avoid excess moisture. Water moderately, allowing the substrate to dry completely between waterings. In winter, its rest period, watering should be significantly reduced. It is sensitive to stagnant moisture os it is preferable to water it from the saucer to avoid any rot at the collar level. Rarely affected by diseases, it can nevertheless be attacked by mealybugs or mites.

Melocactus bahiensis fits well in a bright living room, conservatory, or heated greenhouse. It is often grown alone, in a terracotta pot that highlights its charming appearance. For a beautiful composition, it can be paired with other globular cacti such as Echinocactus grusonii, or with architectural succulents like Aloe brevifolia or Haworthia fasciata. Its contrast with more upright plants, such as Euphorbia tirucalli, allows for a dynamic and original display.