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Hoya Curtisii – Exquisite Trailing Vine

by gardeningit
Hoya Curtisii

The miniature of the Hoya genus is an exquisite trailing vine, Hoya curtisii. It is a popular houseplant having spade-shaped, olive-green leaves with mint-blue spots on them. It is a succulent plant whose leaves are waxy in nature. Its beautiful, showy flowers grow in clusters and bloom for an extended period in the growing seasons.

This dangling vine can be grown in hanging baskets inside a home to add a greeny touch of nature. It is a small and compact Hoya species that is so easy-to-grow and so beautiful to look at. Let’s get into more of its features and care requirements.

Common Names

  • Hoya Aloha
  • Porcelain Flower
  • Fung Wax Flower


  • Family: Apocynaceae
  • Subfamily: Asclepiadoideae
  • Genus: Hoya

About the Genus Hoya

It is a genus of almost 200 to 300 flowering species. All of these species are native to the tropical regions of Asia and some areas of Australia. These plants have waxy flowers, and thus, they are commonly known as waxplant or wax vine.

Origin and Distribution

This Hoya species from the Apocynaceae family is native to the Philippines, Thailand, and Malaysia. This plant is also found in tropical and subtropical Asia.

Hoya Curtisii Features

Foliage and Stem

This eye-catching plant has pendulous foliage that grows horizontally first and then begins to trail down the pot. Its leaves are olive-green in color, and they have freezy-blue markings on them. The spade-shaped leaves are about 1-2.5 inches long and grow on long, slender stems. Each pair of leaves grow opposite to each other, and these leaves grow in numbers on each stem.

Hoya Curtisii Flowers

Hoya curtisii flowers are also eye-catchers. They are unique in shape, pinkish-white in color, and fragrant in smell. Its cylindrical petals surround a star-shaped center. Its flowers grow in clusters between the dangling stems of its foliage.


Just like all the other species from the genus Hoya, curtisii Hoya is also an evergreen vine. Its adorable, little leaves are do not follow the falling trend in autumn. Its foliage remains green and functions from January to December and from spring to winter.


This miniature plant has a small height of only 2 inches. After attaining this mini height, it starts to dangle down. Its vine is about 20 inches long. This lovely vine grows at a slower pace at the beginning but increases its rate of growth as it matures.

Temperature Tolerance

Hoya curtisii is not a fan of temperature extremes. It is not frost-hardy nor tolerant of heat. Its foliage starts to scorch and burn if the temperature increases above 30°C. You should never leave it outside in extreme heat or extreme cold. The lowest that it can bear is 10°C. It must be provided from frost and chilly injuries in winters.

Humidity Tolerance

This plant is from the forests of the Philippines and Malaysia. These countries are known for high rainfall rates and high humidity. This is why it prefers its grower to mimic an environment similar to that one. It prefers a highly humid surrounding. Never let the humidity fall below 50%. Its leaves cannot stay fresh at such a low level of moisture. You can regulate humidity by placing it over a pebble tray or placing it in a group with other plants.

Hoya curtisii Bloom

This tropical plant blooms only if it is provided the right conditions. The blooming seasons are spring and summer. The main requirement is proper light exposure. Also, it blooms only in the USDA plant hardiness zones of 10 and above. Other than these zones, the conditions are not suitable enough for Hoya curtisii bloom.

Drought Resistance

Hoya curtisii is a beautiful succulent that is fairly drought-resistant. Its thick and waxy leaves can retain water for harsh conditions. This beaut does not die right away if you forget to water it for some days; its succulent leaves have its back!

Disease and Pest Resistance

This miniature vine is often attacked by aphids, mealybugs, fungus gnats, and spider mites. These pests attack this plant when its foliage stays wet for long. You can avoid these by regulating this plant’s watering schedule and by keeping it dry between waterings. You can also use neem oil or insecticidal soap to get rid of these pests. This Hoya species can also fall prey to fungal infections. To prevent your plant from getting one, protect it from damp and soggy soil.


This pretty plant is toxic due to its waxy leaves. Their ingestion can cause digestion problems. It is better to keep your pets and children away from their eye-catching leaves.


This low-maintenance beauty can be easily cared for without any hassle. Its basic requirements are the same just as other houseplants. Once you mastered the basics, taking its care is as easy as a breeze. It does not need occasional re-potting, feeding, or pruning. All it requires is a regular watering schedule and a well-lit spot.

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If your pretty Hoya curtisii suddenly stops growing and its foliage is not blooming, you need not panic; your plant might be just resting! This gorgeous plant goes dormant in winters and does not increase in height or width. You should cut back on its watering and feeding during this resting stage.

Hoya Curtisii Care

Hoya curtisii care involves three times watering in a week and occasional misting. It prefers <50% humidity and 2-3 hours of the morning sun. It must be grown in fast-draining soil, and it must be fed with domestic fertilizer every month. The ideal temperature range for its proper growth is 18°-24°C. The best growth zones are 10 and above.

Water Requirements

Hoya curtisii requires moderate watering. It should be watered thrice a week in summers and once a week in winters. This is because its soil takes more time to dry on colder days. Another way to master its watering schedule is by checking the dryness of the topsoil, always before watering it. This way, its soil will never get too damp or overly-moist. Make sure that you never overwater your Hoya because over-watering has more adverse effects than under-watering it. Always wait for the topsoil to get dry first, and then water it with warm water.

Hoya Curtisii Soil

This trailing plant must be grown in fast-draining soil so that excess water is never trapped between its roots. You can use a regular potting mix for good results, but cactus and succulent mix will work magic for this Hoya curtisii. The succulent mix contains the right amount of perlite and sand that increase drainage and aeration of the soil. You can also make your own potting mix by adding 1 part perlite to 2 parts sand. Some Hoya plants prefer acidic soil, while others like to be grown in slightly alkaline soil. As for Hoya curtisii soil, both pH levels do fine.

Hoya Curtisii Light

An east-facing window receives just the right amount of sunlight required for the Hoya curtisii light exposure. It prefers bright, indirect sunlight. If you want your Hoya to bloom, you should place it under the direct morning sun for about 2-3 hours every day. This dangling vine will never bloom if you grow it in a dimly-lit corner of a room. You can also place it on a Southern-window sill. But you will have to water it more in that spot because its soil will dry out quickly due to more sunlight.

Temperature Requirements

Hoya Curtisii care involves placing it in a warm room, where the temperature stays between 18°-24°C. This temperature range is not difficult to maintain if you live in the tropics; it is the average room temperature. At nights, the curtisii Hoya requires a temperature of 16°C. Warmer temperature lets its leaves carry out sufficient photosynthesis to keep the leaves greener and fresher. On a hot day, you can prevent this plant from getting burnt by misting its leaves. Misting will increase the rate of evaporation that will, in turn, drop the temperature around it.

Humidity Requirements

This tropical vine is fond of highly humid environments. Its olive-green leaves require a lot of moisture in their surroundings to stay fresh and vibrant. The humidity must be kept greater than 50% for this Hoya curtisii to thrive and grow lush. You can maintain this humidity level by frequent misting. However, make sure its leaves do not stay wet all the time. Extra moist leaves are more susceptible to fungus and rotting problems.


This beautiful species from the Apocynaceae family needs proper feeding for healthy growth. You should feed it once every month in the growing season. From September to March, fertilize it only one to two times. Do not over-feed your Hoya plant; extra fertilizer does more harm than good.

You can use the domestic fertilizer for this plant. Just add 1/4th tablespoon of fertilizer to a gallon of water and add it to the plant’s roots. Always water the plant before fertilizing it; this is to protect the roots from burning.

Hoya Curtisii Cutting

Just like every other houseplant, this dangling beauty needs yearly grooming and pruning. Hoya Curtisii cutting must be done with sharp shears or scissors. You can also prune this plant when its branches grow longer than you need them to be. The best time for Hoya curtisii cutting is at the beginning of the growing season, i.e. in early spring. Always sterilize the scissors before pruning so that your plant is protected from any infections.


This lovely vine is a small plant that likes to stay root-bound. So you should not keep it in a bigger pot. Also, it does not need to be re-potted every year. You should only move it to a new pot when its roots start to grow out of its drainage holes. This does not happen for almost 2-3 initial years. While choosing a pot, always go for the one that is only one size bigger than the previous one.

Propagating Hoya Curtisii

Hoya curtisii is a gorgeous vine that adds a style factor to every space. So why not propagate it and increase its collection? Why not embellish every room with a lovely Hoya vine? Propagating Hoya curtisii is a piece of a cake. If you have never propagated any plant before, here is the easiest guide for propagating your Hoya:

  1. Take a sharp knife and sterilize it.
  2. Cut 8 inches long stem cutting just below the node.
  3. Make sure that the stem cutting has healthy leaves and aerial roots.
  4. You can place this cutting into a jar of water, moist peat-moss, or even in a soil-water solution.
  5. New roots will grow in some weeks. You can then move the mini-plant into a new pot with fresh soil.


Every house needs an adorable pendulous vine, planted in a hanging basket out on a porch. Hoya curtisii is one such adorable plant that can be the ultimate addition to your indoors. It is a low-maintenance, drought-resistant, and durable plant that stays evergreen and fresh throughout the year. It looks perfect in a terrarium, in a home garden, or as ground cover on the patio.

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