Hoya cinnamomifolia is a bold and beautiful species from the Apocynaceae family, native to the tropical forests of Java, Indonesia. It is an exceptionally striking Hoya, admired for its large, glossy leaves and vibrant, richly coloured flowers.

The foliage is substantial — thick, leathery, and deeply veined, with each leaf typically measuring 10–15 cm long and up to 8 cm wide. The veins are distinctly lighter, running in elegant symmetry across the surface, giving the plant a textured, architectural appearance. Mature vines develop a strong, upright growth habit, making it ideal for training onto trellises or moss poles.

When it blooms, Hoya cinnamomifolia produces large umbels of spectacular star-shaped flowers. The corolla (outer petals) is bright lime green, while the corona (inner part) glows with deep reddish-purple tones — a stunning contrast that makes it one of the most visually dramatic Hoyas in cultivation. The flowers are waxy, sweetly scented, and long-lasting.

Hoya cinnamomifolia – Care Guide

Light

Thrives in bright, indirect light. Some gentle morning or late-afternoon sun helps enhance leaf texture and encourage flowering. Avoid intense midday sunlight, which can scorch the foliage.

Watering

Water when the top 2–3 cm of soil feels dry. As a semi-succulent species, it tolerates mild drought better than overwatering. In winter, reduce watering and allow the soil to dry more thoroughly.

Temperature and Humidity

• Temperature: Prefers warmth, 18–28°C. Protect from cold draughts and keep above 15°C.

• Humidity: Moderate to high humidity (60–80%) promotes healthy growth and more frequent flowering. Mist occasionally or use a humidifier in dry homes.

Soil and Potting

Use a chunky, airy, and free-draining epiphytic mix – orchid bark, perlite, coco husk, and a little peat-free compost. Hoyas flower best when slightly root-bound, so repot every 2–3 years.

Feeding

Feed monthly during spring and summer with a high-potassium fertiliser to support flowering and lush foliage. Stop feeding in autumn and winter.

Pruning and Maintenance

Prune long vines to manage size and encourage branching. Never remove peduncles (flower spurs), as Hoyas bloom repeatedly from these same points.

Growth and Maturity

A moderate to fast grower when given warmth and light. Mature vines can reach 1–2 metres, with each leaf growing impressively large. Flowers typically appear once the plant is established.

Common Issues

• No flowers: Caused by insufficient light or removal of spurs.

• Yellowing leaves: Overwatering or poorly draining soil.

• Brown edges: Low humidity or excessive direct sun.

• Pests: Occasionally mealybugs, thrips, or spider mites.

Background and Benefits

Discovered in Java, Hoya cinnamomifolia is named for the cinnamon-like colour of its reddish-brown blooms. It’s often considered one of the most impressive Hoyas, both for its large, textured leaves and for its bold flower contrast of lime and burgundy. Perfect for collectors and tropical plant enthusiasts, it’s a hardy yet showy species that adds dramatic impact to any Hoya display.

✅ Quick Care Summary

• Light: Bright, indirect; tolerates soft morning sun

• Water: Allow topsoil to dry slightly; avoid waterlogging

• Temperature: 18–28°C; protect below 15°C

• Humidity: Moderate to high (60–80%)

• Soil: Chunky, airy, free-draining epiphytic mix

• Feed: Monthly in spring/summer; high-potassium fertiliser

• Growth: Climbing or trailing vine; thick, veined green leaves; umbels of lime-green and burgundy waxy flowers