Hoya sp. ‘Gayo’ is an undescribed species-form Hoya, named after the Gayo Highlands of Sumatra, where it is believed to originate. It is particularly valued by collectors for its large, dramatic foliage, strong climbing habit and potential for striking blooms once mature. This is a plant that rewards patience and stable conditions, developing into an impressive statement specimen over time.

Plant Description

Hoya sp. Gayo is primarily grown for its bold, oversized leaves, which are noticeably larger and thicker than those of many common Hoyas. The leaves are elongated to oval in shape, with a slightly pointed tip and a firm, leathery texture. Mature foliage is typically deep green with a subtle sheen, and in brighter light the leaf veins may become more pronounced, adding to the plant’s architectural appeal.

The plant grows as a robust, climbing or trailing vine, producing thick, strong stems capable of supporting its heavy leaves. When young, growth may appear slow and deliberate, but once established, it can become a vigorous grower. Because of its leaf size and weight, it is especially well suited to being trained up a hoop, trellis or sturdy support rather than left to trail freely.

While foliage is the main attraction, mature plants can produce clusters of waxy, star-shaped flowers, typically in pale tones such as creamy white, soft pink or light peach, sometimes with a contrasting centre. As with most Hoyas, flowers emerge from persistent spurs and may carry a light, sweet fragrance.

Light Requirements

Bright, indirect light is essential for healthy growth and long-term success. An east- or west-facing window is ideal, or a bright position slightly set back from a south-facing window.

Hoya sp. Gayo can tolerate a small amount of gentle direct sun, particularly in the early morning, but strong midday sunlight can scorch the leaves. Insufficient light often leads to slow growth, elongated stems and little chance of flowering. Consistent light levels are more important than intensity spikes.

Watering

This Hoya prefers a careful balance between moisture and airflow. Allow the top portion of the growing medium to dry out before watering again. When watering, soak the pot thoroughly and ensure all excess water drains freely.

During the growing season, watering will be more regular, though still conservative. In cooler months, reduce watering significantly and always err on the side of dryness. The thick leaves store moisture, making the plant far more tolerant of under-watering than prolonged wet roots.

Signs of underwatering include slightly soft or wrinkled leaves, while yellowing leaves or stem softness usually indicate over-watering.

Temperature & Humidity

Hoya sp. Gayo thrives in warm, stable indoor temperatures, ideally between 18–28°C. It is sensitive to cold and should be protected from draughts, sudden temperature drops and cold windows during winter. Temperatures below 12°C can cause stress or damage.

Humidity is an important factor for optimal growth. Moderate to high humidity encourages larger leaves, stronger growth and healthier stems. While it can adapt to average household humidity, it performs best when humidity is consistently above 50%. Good airflow is equally important to prevent fungal or bacterial issues.

Soil & Potting

A very free-draining, chunky growing medium is essential. In nature, this plant grows epiphytically, with roots exposed to air and quick-drying conditions. A mix containing orchid bark, perlite or pumice, and a small amount of peat-free compost or coco coir works well.

Choose a pot that is appropriate to the root ball rather than oversized. Hoyas generally prefer to be slightly root-bound, and frequent repotting can slow growth and delay flowering. Terracotta pots are often beneficial, as they allow moisture to evaporate more quickly.

Feeding

Feed sparingly but regularly during the active growing season. From spring through late summer, a diluted, balanced houseplant fertiliser every four to six weeks is sufficient. Overfeeding can lead to excessive vegetative growth at the expense of overall plant health.

Stop feeding entirely during autumn and winter, when growth naturally slows.

Pruning & Training

Because of its large leaves and strong stems, Hoya sp. Gayo benefits greatly from early training. Gently guiding vines onto a hoop or trellis helps support the weight of the foliage and creates a more compact, attractive plant.

Pruning should be minimal and limited to removing weak, damaged or excessively long growth. Never remove flower spurs, as Hoyas rebloom from the same points year after year.

Flowering Care Tips

Flowering typically occurs only once the plant is mature and fully settled. Stability is crucial. Avoid moving the plant frequently, especially when buds begin to form, as changes in light or temperature can cause bud drop.

Bright indirect light, warm temperatures, consistent watering and a slightly root-bound pot all increase the likelihood of blooms. Some patience is required, as this species-form Hoya focuses heavily on foliage development before flowering.

Propagation

Propagation is usually done via stem cuttings with at least two nodes. Cuttings can be rooted in water or in a well-aerated propagation mix. Warmth, humidity and bright indirect light will encourage rooting, which may take several weeks due to the plant’s thicker stems.

Overall Care Summary

Hoya sp. Gayo is an excellent choice for collectors who appreciate bold foliage and slow, steady development. It is not a fast or flashy plant, but with consistent care it becomes a striking, long-lived specimen. Respect its epiphytic nature, avoid overwatering, provide warmth and light, and allow it time to establish.