Synonyms:

Cactus rubescens
Consolea catacantha
Consolea guanicana
Consolea moniliformis subsp. rubescens
Opuntia catocantha
Opuntia guanicana
Opuntia rubescens

Habitat:

C. rubescens has been documented in the region of Puerto Rico and extends its presence to various areas in the Lesser Antilles, reaching as far south as the island of Guadaloupe.

Description:

Consolea rubescens is a small tree, reaching a height of 6 meters. It has a single cylindrical trunk, approximately 20 centimeters in diameter, adorned with enduring clusters of grayish spines measuring 2-12.5 centimeters in length. The bark, either reddish or grayish-brown, tends to peel off. Its branches are flat, extending or bending downwards, featuring lateral joints. These joints are lanceolate, oblong, or elliptic, with wavy margins and a length of 20-50 centimeters. Areoles, spaced 1-2 centimeters apart, bear yellowish, tiny, woolly fibers, and shed brown glochids. The plant sports 6-12 thin, needle-like grayish spines measuring 1-3 centimeters.
The flowers, measuring 2-3 centimeters in width, display a flattened-obovoid to flattened-ellipsoid receptacle, slightly tuberculate, and adorned with numerous spines. The perianth starts off yellow and transitions to orange as it ages, featuring an upright, broad structure with a blunt, pointed tip. Stamens are shorter than the petals, and the style is stout, matching the length of the stamens. The green fruit grows up to 6 centimeters in length, having a flattened-obovoid shape and retaining persistent spines. Seeds are rounded, with a width of 6-8 millimeters.

Cultivation:

Consolea rubescens stands out as a horticulturist’s delight due to its remarkable ease of cultivation. Flourishing under optimal conditions, this plant thrives best when exposed to abundant sunlight in well-ventilated surroundings. A key consideration for its well-being is maintaining mild temperatures, ensuring they remain above 3 °C, and taking protective measures during the winter months to shield it from potential cold stress.
When it comes to irrigation, a judicious and moderate approach is the key to success. It is advisable to water Consolea rubescens only when the soil has thoroughly dried out, typically adhering to a weekly watering routine during the active growth phases of spring and summer. As autumn sets in, this frequency diminishes to once every two months, and during the winter dormant period, watering is suspended entirely. The significance of well-draining soil cannot be overstated, and a blend of peat and pumice is an ideal choice to prevent water stagnation, fostering a healthy root environment.
Consolea rubescens exhibits a low-maintenance nature, particularly in terms of fertilization. An annual application of diluted fertilizer mixed with water generally fulfills its nutritional requirements, sparing the gardener from frequent feeding obligations. The rejuvenation of this plant is ensured through periodic repotting, a task that becomes imperative each spring as the roots start to feel confined. Following an annual repotting regimen not only prevents root constriction but also guarantees a continual supply of fresh soil. Post-repotting, it is advisable to withhold watering for a week or more to allow the plant to acclimate to its new environment and promote a seamless transition. These thoughtful cultivation practices contribute to the overall health and resilience of Consolea rubescens, making it a rewarding addition to any horticultural endeavor.

Propagation:

Propagation of Consolea rubescens is most effectively achieved through the preferred method of stem division. The plant’s specialized structures, known as cladodes, exhibit remarkable potential for generating new growth. When carefully detached from existing stems and introduced to a well-draining soil substrate, these cladodes readily root, initiating a process that ensures successful propagation.
This propagation technique not only showcases the resilience of Consolea rubescens but also plays a pivotal role in fostering its overall robust growth. As these newly rooted cladodes establish themselves, they contribute to the development of a thriving and resilient population of Consolea rubescens, adding to the vibrancy and sustainability of this remarkable plant in horticultural settings.

Curiosity:

However there had been discussion among botanists about the name “Consolea rubescens”, the latter is still considered the official name.

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