With attractive variegated foliage and vining growth habit, Hoya rangsan looks fantastic around plant trellis and small pots!
Native to Southeast Asia and Australia, Hoya rangsan is prized for its stunning blooms and relatively low maintenance requirements. If you are a busy plant parent looking to liven the corners of your home, this Hoya rangsan care guide will help you!
- Botanical Name: Hoya sp. Rangsan
- Bears clusters of fragrant, pale pink flowers
- Loves bright, indirect sunlight
- Requires a temperature range of 60-85°F (15-29°C)
- Non-toxic to pets and humans
Look at some Stunning Variegated Hoya Varieties here
Hoya Rangsan Plant Profile
Member of the Apocynaceae family, Hoya rangsan features thick, oval-shaped leaves variegated, with speckles of light green, cream, and sometimes pink against the dark green surface. Measuring around 2-4 inches in length, the leaves grow in pairs along the plant’s trailing vines, giving it a lush, verdant appearance. Clusters of star-shaped pale yellow to pink flowers grace the plant from late spring to summer.
Hoya Rangsan Flower
Apart from the attractive vining feature, what set the plant apart are its flowers appearing in clusters called umbels. Each umbel contains multiple flowers, and the individual blooms measure around 0.5-1 inch in diameter while each flower consists of a star-shaped corolla surrounded by a similarly shaped, yet more prominent, calyx. The blooms are typically white or pale pink with a deep red center, creating a striking visual effect that occurs from late spring to early autumn.
The flowers are not only visually stunning but also emit a delightful fragrance that fills the room when in bloom. The flowers have a waxy texture, giving them a unique and captivating appearance.
Find some Interesting Hydroponic Flowers here
Ideal Pot Size
Hoya rangsan prefers to be slightly root-bound, so choosing a pot that is slightly bigger than the plant’s root ball is best for plant growth. Start with a 4-6 inches pot with enough drainage holes that’ll allow the roots to breathe and aid plant growth.
When you see the roots coming out of the drainage holes, transplant the pot to a 1-2 size bigger container. Ensure to drill enough holes at the bottom to aid drainage.
Hoya Rangsan Propagation
The easiest and the most straightforward method to propagate Hoya Rangsan is via stem cuttings. Look for a healthy, disease-free plant and get started with the following steps:
- Select a healthy, mature stem with at least two pairs of leaves.
- Cut the stem just below a node using a sterilized cutting tool.
- Remove the lower pair of leaves to expose the node.
- Allow the cutting to air dry for a few hours to reduce the risk of rot.
- Dip the cut end of the stem in a rooting hormone to encourage faster root development.
- Plant the cutting in a pot filled with a well-draining soil mix, ensuring the node is covered.
- Keep the cutting in a warm, brightly lit area, but avoid direct sunlight.
Maintain consistent moisture in the soil, but avoid overwatering to prevent rot. Monitor the cutting for root development, which typically occurs within a few weeks.
Learn about Growing Fishtail Hoya Indoors here
Hoya Rangsan Growing Requirements
Hoya rangsan requires bright, indirect light for healthy growth and to promote flowering. Place the plant near an east or north-facing window where it can enjoy a few hours of bright morning sunlight.
Do remember that direct sunlight can scorch the leaves, so keep the plant away from the intense afternoon sun. If natural light is insufficient, consider using a grow light to supplement the plant’s light requirements.
Being an epiphyte, Hoya rangsan thrives in a well-draining, aerated soil mix with a pH of 6-7 that retains moisture without becoming waterlogged. To provide the same, combine equal parts of regular potting soil, perlite, and orchid bark. It will provide the essential nutrients while ensuring proper drainage.
A contaminated growing medium will suffocate the plant roots, so ensure to keep away from it. If you are using regular garden soil, consider amending it well with plenty of sand or perlite.
This epiphyte prefers to dry out slightly between watering sessions. Keep an eye on the top two inches of the medium and water it when you find it drying out. Maintain a weekly deep watering session by thoroughly saturating the medium while the excess water drains out of the drainage holes. Let the medium dry out before repeating it.
Overwatering can lead to root rot, so reduce watering frequency during the winter months as the plant enters a period of dormancy.
Hoya rangsan prefers temperatures between 60-85°F (15-29°C). It is sensitive to extreme temperature fluctuations, so avoid placing the plant near drafty windows, air conditioning vents, or heating sources. If temperatures drop below 50°F (10°C), the plant may experience cold stress, resulting in leaf drop or slowed growth.
If the temperature falls below the point, induce some warmth using heat lamps or place the plant in an indoor greenhouse.
As a tropical plant, Hoya rangsan thrives in higher humidity levels, ideally around 60-70%. Use a humidifier or place a tray of water near the plant on drier days. Alternatively, group your Hoya with other humidity-loving plants to create a microclimate with increased moisture levels.
Misting the plant can also help, but ensure the leaves dry quickly to prevent fungal issues.
Look at the Best Small Leaf Hoya Varieties here
Hoya Rangsan Care
Fertilizing your Hoya rangsan with a balanced, water-soluble fertilizer will promote healthy growth and support flowering. Feed your plant with a halt strength 10-10-10 or 20-20-20 blend every 4-6 weeks during the spring through summer.
Avoid over-fertilizing, as this can lead to excessive growth without blooms or potential root damage. Also, do not fertilize during the colder months.
Pests and Diseases
Hoya rangsan is relatively resistant to pests and diseases but can be affected by common houseplant pests such as mealybugs, aphids, and spider mites. Inspect your plant regularly for signs of infestation and treat the plant with insecticidal soap or neem oil spray on the affected spots.
Keep away from overwatering and provide proper ventilation to ensure healthy plant growth, keeping potential issues at bay.
Get the Hoya Mathilde Care Guide here
Where to Buy Hoya Rangsan?
Hoya rangsan is a highly sought-after plant known for its stunning foliage and unique flowers. Check with local nurseries or specialty plant shops that specialize in tropical plants, as they may occasionally carry Hoya Rangsan.
Another option is to search online, as there are several reputable plant retailers and collectors that offer this Hoya Rangsan for Sale. When buying Hoya rangsan online, remember to do your research to ensure that you receive a healthy and high-quality plant.