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Hoya linearis, also known as the wax vine, creates a magical atmosphere in any gardener’s home.
While not the easiest plant to care for, you’ll be fine once you master the basics. Of all the Hoya varieties, the wax vine has the most distinctive features. So if you want to own this indoor plant, make sure to stay a while longer.
What is the Hoya Linearis?
The linearis has long fuzzy stems. When placed in a hanging basket, it has a curtain-like appearance. Some other common names are the porcelain vine, porcelain flower, wax plant, or wax vine. University Botanics Garden Ljubljana states it comes from the Himalayas in Asia.
The plant is an extraordinary variety and finding them is hard. When it comes to Hoya linearis care, many people find it challenging to keep this plant growing. The reason is it has weak roots and needs an ideal environment to survive. But we are here to help, so make sure to check the Hoya plant care below.
The tropical plant’s leaves are soft and thin with hairs. So how long does this plant take to reach maturity? Your plant will take up to five years to mature, and the underside of the leaves is grooved.
Another fantastic thing is that it greets you with up to 13 white star-shaped flowers when it blooms. Besides, you may notice a tint of pink or yellow-white coronas. So if you love a trailing houseplant, this is a beautiful plant to have in the home.
But before we get to the Hoya linearis care, check out the summarized table of the linearis here:
Scientific Name: Hoyoa linearis
Common Name: Porcelain vine, porcelain flower, wax plant, or wax vine
Plant Type: Pendant epiphytic succulent perennial
Native to: the Himalayas in Asia
Shape: Soft, thin leaves with white star-shaped flower with a tint of pink or yellow
Maximum Size: Leaves grow 2-inches (5cm) long with lax umbels about 1.5-inches (3.7cm)
Watering Requirements: Leave the soil to dry out between watering
Light Requirements: Bright but indirect filtered sunlight
Preferred Humidity: High
Preferred Temperature: 60-85°F (15-29°C)
Soil or Potting Medium: Well-drained potting soil
Fertilizer: Balanced fertilizer
Propagation Method: Stem cuttings and rooting
Hoya Linearis Care
Now let’s get busy taking care of your hanging plant to start showing off its greenery. The main thing is to create the best environment for your linearis hoya to thrive. If you can achieve this, you’ll have no problem taking care of your tropical beauty.
Best Potting Mix
Your needle leaf wax vine loves free-draining potting mix. One thing you will find is that your plant is happiest in well-aerated and fertile soil. You can prepare a rich organic mix using a cacti 1:1:1 ratio soil with perlite and orchid bark.
The fantastic thing is when you add perlite, it helps with drainage and works well for your plant. Or you can use two parts soulless mix with one part fine-grain bark to substitute the perlite.
No matter what mixture you decide to use, it helps to keep the ground light yet airy.
Now, this is where you need to take extra care when watering your Hoya linearis. During the active growth season, leave the top layer of the potting to dry out first. The tricky thing is the leaves do not hold water for long. So when it comes to houseplant care for your wax plant, you can do the following:
- Water your linearis well to leave it soaking in the water.
- Let it stand that the excess water flows out through the drainage holes.
- You can do this weekly during spring and summer, depending on the heat.
- In the winter months, your plant grows slower and only needs light watering.
The best is not to overwater your wax plant and preferably do not leave it standing in water. The water can attract root rot and pests.
We recommend keeping to a watering schedule with this fussy plant. If possible, do not water it at night as the temperature is cooler.
Where you can use filtered water or leave your tap water standing overnight. Another helpful thing is to water it with room temperature water. Doing this helps prevent shock to your houseplant.
Lighting Needs to Make Your Hoya Happy
When looking at your Hoya linearis care for lighting, it needs bright yet indirect sunlight. Try where possible to avoid direct light as the leaves burn or wither. Now, one thing your plant does not do well in low light.
The best is to hang the porcelain flower in a spot that gets enough light from the top. Your plant enjoys morning sun during the winter but be careful in hot summers as the leaves get burned. With good lighting, the soil dries fast, and the best place is a well-lit room.
For half of the day, the linearis can stand in indirect light but also needs some periods of darkness to survive. So if you want to provide it an ideal living spot, we recommend placing it in the bathroom.
As your plant lives in the mountains, it needs temperatures between 60° to 85°F (15°-29°C) to thrive. This is because the plant grows at a high altitude and can withstand cool night temperatures. So the basic rule is to keep the nighttime temperature to a minimum but not below 50°F (10°).
The Importance of Humidity
Your tropical plant loves humidity of 50 to 70%. One thing you’ll notice is this Hoya needs more humidity than other house plants. The best way to know your wax vine needs humidity is when you see the leaves withering. Then, you can give it a misting regularly using filtered water but prevent soaking the leaves. Or you can invest in a humidifier or place a shallow bowl of water near it.
One thing the linearis hoya does not need much of is feeding. Still, you can give it a boost with fertilizer during the growing season. You can provide your plant twice a month during spring and summer using a balanced fertilizer.
We recommend diluting the feeding to prevent damaging your plant. Yet, also necessary if the soil is dry, moisten it before feeding to protect the roots. Still, another handy tip is to provide your houseplant with a phosphorus base feeding before the blooming phase starts.
Doing this helps encourage bloom growth. During autumn and winter, you need not feed your plant as it is the resting period.
Great, but how do you enhance the appearance of the linearis? First, it helps to prune it with sterilized shears cutting back the dead or dried stems and leaves. Yet, please take extra care not to cut the peduncles as this is where the flowers grow.
Also, please do not remove the old stalks as it delays blooming.
Mmm, now we get to the exciting stuff, and that is making sure you always have one of these plants growing in your home. The Hoya you can propagate using two methods stem cuttings and rooting. The important thing is to keep humidity levels high by covering the cuttings. You can use a plastic bag, propagator, or humidity dome.
Stem Cutting Method
- Choose a healthy stem with up to four nodes. These nodes are the place where the stem and leaf connect.
- Start by removing the two lowest nodes and dip the one end of the cutting into rooting hormone.
- Place your cutting into a soil mixture of 40% perlite in a pot.
- Water it well and make sure the water drains out well. But do not let the potting mix dry completely.
- Place it covered in indirect bright sunlight with warmth.
- You’ll notice the roots appearing in about four weeks.
Take some potting mix and place it in a zip lock bag with some perlite. Moisten the soil and place your cutting inside. Please give it a spray of water on the inside of the pack. Next, please fill-up the bag with air and seal it. It helps to do this after every fourth day. As a month goes by, you will notice new growth appear. Once this happens, you can transfer your cutting to a potting medium to care for it.
USDA Growth Zone
The good news is if you live in the USDA hardiness zones 11a to 11b, you can grow your Hoya linearis outdoors. Of course, it helps to choose a frost-free spot that is damp, well-draining with the sun, yet provides midday shade.
Potting Your Hoya Linearis
The good news is your plant needs no frequent repotting as it is root-bound and placed in smaller pots. So you can expect to transplant them after a year or two. Great, but how do you know when to repot the plant?
You can remove it from the pot and brush away the soil around the roots. If you notice any roots circling at the bottom, you can transfer them to a new container. Choose a vessel a few inches bigger and add some orchid bark to the soil for free drainage.
The best time to do this is in spring to protect it from shock and allows the roots to establish. One thing you will love is the blooms with a lemony scent. You can expect to see flowers from summer to fall and last two weeks at the most.
Yet, if your plant is still young, it only happens after two years. Another notable thing is your Hoya linearis plant can grow huge indoors up to 6.57 feet (2m). You will notice it growing in a downwards and outward direction.
Hoya Linearis Varieties
While the linearis is a rare variety, there are many other Hoya houseplants to add to your collection, as seen here:
The porcelain flower is an outstanding hybrid that can have plain, crinkled, or variegated foliage. The blooms last long and look like fuzzy clusters of stars. It is a hardy yet versatile plant that adapts well to moderate humidity.
The plant is charming, and you can find different varieties available. Growing the plant is easy, and blooms clusters of fuzzy flowers. The leaves spread out from vines and can grow up to eight feet long. The flowers last up to 15 days at the most.
The plant is kept by gardeners for its foliage more than the blooms. The tropical plant boasts long lance-shaped leaves with a waxy surface. The flowers are cute and look fat lasing about a week with a butterscotch fragrance.
Hoya Linearis Diseases & Pests
When it comes to the Hoya linearis care for pests and diseases, you do find them, but humidity is a big problem. If you notice the leaves looking scorched, then your plants are getting too much sun. While wilting leaves are telltale signs of too much water.
If this happens, we recommend inspecting the roots if they to damp or perhaps rotting. Take a cutting to help with new growth. If the rhizomes dry, then it helps to increase the watering. Another concern is aphids that can reduce your plant’s growth.
These pests cause yellowing in the leaves, or the leaves stop growing. You can use a spray of water to remove them and mealybugs. Or you can use horticultural oil or insecticidal soap. Yet, do not spray the flowers with the oil as they will die.
The last pest to look for is spider mites that suck out the sap of the leaves. You can use insecticides on your plant to remove them.
Frequently Asked Questions
Should I mist my Hoya Linearis?
Your plant is native to the tropics and loves humidity. So yes, you can give your linearis a regular misting using filtered water. Yet do not soak the leaves. Only give it a light misting.
Is the Hoya Linearis hard to grow?
The linearis is a unique plant to care for in the Hoya varieties. Many gardeners find it challenging to grow. But when you follow the steps here, your Hoya linearis grows well. It needs high humidity with well-draining potting soil. It helps to leave the solid to dry a bit before you water it again when it comes to watering.
Why is my Hoya dying?
Your Hoya can die for different reasons, from pests such as aphids and spider mites to root rot diseases. The most common cause is overwatering or improper watering. The majority of these plants can go longer without watering as the leaves store excess water. But when it comes to the linearis regular misting of water helps to provide it with the proper humidity.
Where to buy Stromanthe Triostar?
You can find the Hoya linearis sold online or at a nursery, but they are scares. Luckily you can find them available here at Plantly. The best part is your houseplant gets delivered to your door without any hassles.