Hoya siariae 'Red' (Hoya blashernaezii ssp. siariae)

Hoya siariae 'Red' is the red-flowered selection of a Philippine taxon still sold under the former name Hoya siariae. The foliage is long and narrow, with prominent veins, and can develop pigmentation in strong light. The accepted name is Hoya blashernaezii subsp. siariae. The fragrance is reported inconsistently. A rewarding houseplant with simple care requirements. Reddish flowers appear on mature plants. Shades vary from one batch to another.

Foliage and growth. The leaves are dark green, ranging from long lanceolate leaves (up to approximately 18 cm on mature plants) to smaller, more elliptic leaves on young shoots, with prominent veins. In good light, the foliage may develop coloration; this coloration is not variegation. The plant may be considered a "cactus hoya": it requires less frequent watering and does not store a large amount of water in its foliage. The buds are sensitive to temperature and may drop following major temperature fluctuations or exposure to cold drafts.

Flowers and fragrance. The 'Red' selection is sold for its flowers, which open translucent pink and deepen toward red. The shade also depends on growing conditions; pink, white, and yellow forms are also in circulation. The corolla reflexes at the tip, leaving a small, umbrella-like cup. The flowers remain open for a short time, often two or three days. In cultivation, flowering may be frequent when light levels are good, but it is not guaranteed in every season. Fragrance is retained as a commercial trait; some growers describe it as subtle, while others do not perceive it.

Botanical identity and origin. Hoya siariae Kloppenb. siariae (Kloppenb.) Kloppenb., 2014. The species Hoya blashernaezii was published in 1999. The name siariae honors Dr. Simeona V. Siar, not a locality. The reference material was collected in the Bicol region of Luzon. The accepted range is the Philippines. 'Red' remains a color label.

The decorative pot is not included in the price. Some specimens may have leaves with defects.

Substrate: use an airy, well-draining mix suitable for epiphytic species. We recommend the professional substrate for Hoya and Anthurium - SG Mix.

For complete recommendations on light, watering, substrate, fertilization, propagation, and flowering, read the complete Hoya care guide.