Hoya carnosa. by Hunda, CC BY-SA 2.0 <https://creativecommons.org/licenses/by-sa/2.0>. CC BY-SA 2.0. via Wikimedia Commons
CC BY-SA 2.0 · Wikimedia Commons
Wax Plant Plant Care
Hoya carnosa (L.f.) R.Br.
Hoya carnosa is known for its waxy and fragrant flowers blooming in clusters. Its vining growth habit makes it perfect for hanging baskets or trailing on a shelf.
Every 7–14 days
Bright Indirect
60–85°F
40–60%
What Is the Wax Plant?
Wax Plant (Hoya carnosa) belongs to the Apocynaceae family within the Hoya genus. Wax Plant is native to Southeast Asia and Australia. Wax Plant is also known as Wax Plant, Hoya carnosa var. carnosa Hoya carnosa, f. carnosa.
Wax Plant displays a vining, trailing growth habit, reaching up to 13 inches tall with a spread of approximately 3 inches. Wax Plant produces waxy, star-shaped flowers with a sweet, honey-like fragrance that range in color from white to pink and appear in clusters known as umbels.
Leaf size: approximately 4 inches.
How Often Should You Water a Wax Plant?
Hoya carnosa requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–14 days
Let soil partially dry between waterings
What Light Does the Wax Plant Need?
Wax Plant thrives in bright indirect light conditions. The optimal light range is 150–400 lux. Avoid placing Wax Plant in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright Indirect
150–400 lux
What Temperature and Humidity Does the Wax Plant Prefer?
Hoya carnosa grows best at temperatures between 60°F and 85°F. Wax Plant prefers humidity levels of 40–60%.
Temperature
60–85°F
Humidity
40–60%
What Soil Mix Works Best for a Wax Plant?
Well-draining soil mix. Good drainage is essential for Wax Plant to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Wax Plant?
Repot every 1-2 years in spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Wax Plant?
Wax Plant can be propagated through stem cuttings. Similar propagation techniques also apply to hindu rope plant plant care, which shares the same genus.
Fertilizing
Every 7 months
During the growing season
Is the Wax Plant Toxic to Pets and Children?
Non-Toxic
Non-toxic. Wax plant / porcelain flower. Listed as non-toxic to cats and dogs by the ASPCA.
What Pests and Diseases Affect the Wax Plant?
Wax Plant is susceptible to mealybugs, spider mites, aphids. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
What USDA Hardiness Zone Does the Wax Plant Need?
Wax Plant grows outdoors in USDA Zone 10b – 12b. Native to Southeast Asia and Australia, Wax Plant is adapted to warm climates. In cooler regions, grow Wax Plant as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 10b – 12b
Keep exploring plants
Wax Plant is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Hoya genus — compare its care with other Hoya species on PlantoScan.
Wax Plant thrives in bright light and direct sun — see other bright-light plants.
More Hoya Species
Other Hoya species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Identify Plants Like the
Wax Plant Instantly
Scan any plant with your iPhone camera and get instant ID, care tips, watering reminders, and disease checks — all in one app.
Free
to download
89%
accuracy
5.0
App Store
200K+
species