10 - 15cm Hoya Puom Siam Ruby House Plant 10,5 cm Pot

Hoya 'Puom Siam Ruby' is a rare and striking hybrid known for its stunning foliage and deep red flowers. This unique variety originates from Thailand and belongs to the Apocynaceae family. Its vibrant blooms and easy-care nature make it a highly desirable plant for collectors and enthusiasts alike.

Leaves

The leaves of Hoya 'Puom Siam Ruby' are thick, glossy, and slightly succulent. They are typically deep green, sometimes with a reddish hue around the edges when exposed to bright light. The leathery texture of the leaves allows the plant to retain moisture, making it somewhat drought-tolerant.

Flowers

The flowers are the highlight of this plant, forming beautiful umbel-like clusters. They are deep ruby red, velvety in texture, and have a star-shaped appearance. The blooms emit a sweet fragrance, particularly in the evening, and can last for several days. Flowering is more frequent in warm, humid conditions with proper light exposure.

Growth Habit

As a vining epiphyte, Hoya 'Puom Siam Ruby' grows by twining around supports, making it ideal for trellises, moss poles, or hanging baskets. It has a moderate growth rate and will thrive when given the right balance of warmth, humidity, and light.

Care Guide

Light Requirements

This Hoya prefers bright, indirect light. Too much direct sunlight can scorch its leaves, while insufficient light may slow growth and reduce flowering. If grown indoors, an east- or west-facing window is ideal. Some gentle morning sun can help encourage blooming and intensify the red tones in the leaves.

Temperature & Humidity

Hoya 'Puom Siam Ruby' thrives in warm temperatures between 18–30°C (65–86°F). It is not frost-tolerant and should always be kept above 10°C (50°F). High humidity (above 60%) is preferred, though it can adapt to moderate humidity levels. If indoor air is too dry, misting or using a humidifier will help maintain optimal conditions.

Watering

Water when the top 2-3 cm of soil feels dry. The plant prefers to dry out slightly between waterings to prevent root rot. Reduce watering in winter when the plant’s growth slows. Always use room-temperature, non-chlorinated water to avoid shocking the roots.

Soil & Potting Mix

A well-draining, aerated mix is essential. A suitable mix includes orchid bark, perlite or pumice, coco coir or peat moss, and a small amount of charcoal for drainage. This prevents excess moisture retention and supports healthy root development.

Fertilisation

Feed with a balanced liquid fertiliser every 2-4 weeks during the growing season (spring and summer). A fertiliser with higher phosphorus content can be used to encourage flowering. Reduce feeding in autumn and winter when the plant’s growth slows.

Potting & Repotting

Repot every 2-3 years or when the roots outgrow the pot. Choose a container with drainage holes to prevent excess moisture retention. A terracotta or breathable plastic pot is ideal for maintaining healthy root conditions.

Pruning & Maintenance

Pruning helps control the plant’s shape and encourages bushier growth. Avoid cutting off flower peduncles, as Hoyas bloom repeatedly from the same nodes. Wipe the leaves with a damp cloth to remove dust and improve photosynthesis.

Propagation

Propagation is best done through stem cuttings. Cuttings should include at least one node and can be rooted in water, sphagnum moss, or a well-draining mix. Rooting typically takes 2-6 weeks, depending on temperature and humidity.

Common Problems & Solutions

• Yellowing Leaves – Often caused by overwatering. Allow the soil to dry slightly before watering again.
• Wrinkled Leaves – Indicates underwatering or low humidity. Increase watering slightly or mist the plant occasionally.
• No Flowers – Often due to insufficient light or nutrients. Move to a brighter spot and use a bloom-boosting fertiliser.
• Root Rot – Caused by excessive moisture in the soil. Ensure the potting mix is well-draining and avoid overwatering.
• Pests – Mealybugs, spider mites, and aphids can occasionally appear. Wipe the leaves with neem oil or use insecticidal soap to manage infestations.