Hoya pubicalyx care guide

In this guide you'll learn: How to care for your Hoya pubicalyx plant and
answers to FAQs to keep your plant happy

The Hoya Pubicalyx is an exquisite and unique flowering houseplant native to subtropical and tropical parts of Australasia, South East Asia and the Pacific. This plant will bring life and joy to your home with its delicate, silky leaves and cascading white blooms.

The Hoya Pubicalyx grows as an evergreen climber in its natural environment, clinging to tree trunks in dense rainforests. The leaves are glossy and typically deep green with a slight twist between them. Its stunning white flowers feature five pointed petals around a central yellow eye. They form a distinctive Star of Bethlehem shape, making them hard to miss! The Hoya Pubicalyx is considered a rare species, and its beauty and mystique will add something special to any room of your home.

Two pictures of a hoya pubicalyx plant with a pink ball of flowers hanging from it.

Tips for nurturing your Hoya Pubicalyx


The Hoya Pubicalyx prefers bright light, but keep it away from direct sunlight as it will scorch the leaves. If your plant looks a bit lacklustre, this might be a sign that it needs more light.


Aim to keep the temperature between 21-30°C for your Hoya Pubicalyx. It should not be exposed to draughts or temperatures lower than 12°C.

Soil Type and Drainage

The plant likes a mixture of regular potting soil, perlite or vermiculite, and bark or coir fibre – all the better to ensure it has sufficient drainage.


A humidity level of 60% and above will ensure the Hoya Pubicalyx stays in tip-top condition.


This species is surprisingly tolerant of dryness, and to prevent rot, it’s better to let the plant’s soil get dry before watering. The top of the soil should be dried out in between waterings.


The Hoya Pubicalyx is toxic to cats and dogs, so keep it out of the reach of any furry companions.


Feed your Hoya Pubicalyx a balanced nitrogen-rich fertiliser during the growing season (spring and summer) with a half-strength dose.

A hoya pubicalyx splash plant on a coaster.

Troubleshooting pests, diseases and common problems

Diseases and pests can be expected in houseplants. Treat the plant with an appropriate fungicide and pesticide if you notice any infestations or signs of rust, root rot, or leaf spot.


Propagating a Hoya Pubicalyx is simple and is a great way to increase your collection of this stunning houseplant. Layering is the preferred method to start new plants. Strip a leaf off the plant, lay it in your soil mix, ensure it’s in contact with the soil, and water it regularly. Another method is to use stem cuttings; pick a piece of stem at least 10cm long and place it in a pot with fresh potting soil. Keep the soil lightly moist to encourage good root growth.

A close up of a flower.

Final Thoughts

The Hoya Pubicalyx is a beautiful, unique houseplant, perfect for brightening any living space. If you can provide the right conditions, you can enjoy its cascading blooms for many years – a truly rare and memorable addition to your home.

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About the Author

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A passionate plant lover and houseplant connoisseur with a rich family background in horticulture. With experience in plant nurseries and garden centers, Jonathan has cultivated a diverse collection of leafy friends and explored native flora on adventures such as trips to South America. His mission is to share his knowledge and enthusiasm for plants, creating a greener and happier world for all.

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