Hoya Undulata

The Undulating Forest Hoya

What Is Hoya undulata?

Hoya undulata is a rare tropical Hoya known for its dramatic, wavy leaves. The name undulata means “wavy,” referring to the strongly rippled leaf edges that give the plant a bold and unusual appearance.

It grows naturally in Southeast Asian rainforests, often in humid, shaded areas. Like other Hoyas, it is an epiphytic vine and is not an aquatic plant. It should never be submerged.

This species is highly valued by collectors for its thick, textured foliage and strong visual character.

Striking and unique, Hoya undulata is ideal for experienced growers who appreciate rare, statement Hoyas.

How It Grows

This plant is a climbing or trailing vine. It produces sturdy stems that can be supported with a trellis or allowed to trail.

Growth is moderate under warm and humid conditions.

The Leaves

The leaves are thick and dramatic.

• Color: medium to deep green, sometimes with darker tones

• Surface: firm and slightly textured

• Shape: broad with strongly wavy or rippled edges

The undulating leaf margin is its main highlight.

Light Needs

Prefers bright, indirect light.

• Avoid harsh direct sunlight

• Good light helps maintain strong leaf structure

Low light may slow growth and reduce leaf firmness.

Water & Growing Conditions

• Allow the top layer of media to dry slightly between watering

• Use airy, well-draining mix (bark, perlite, coco husk)

• Prefers moderate to high humidity

• Ideal temperature: 20–30°C

Avoid overwatering to prevent root rot.

Growing Environment

Best suited for:

• Indoor tropical collections

• Trellised displays

• Greenhouse setups

Not suitable for aquariums or submerged environments.

Care Level

Medium to high care.

• Better for growers with experience

• Requires stable humidity

• Moderate growth rate

Handling Note

Provide strong support and consistent humidity. With proper care, Hoya undulata will develop thick, rippled leaves and become a dramatic focal point in any tropical collection.