Why Do the Leaves on a Hoya Rope Plant Turn Yellow and Have Black Specks on the Leaves?


Hoya plants, also known as Hoya carnosa, are succulents with clusters of brightly coloured, star-shaped blooms and waxy leaves. These plants thrive in USDA plant hardiness zones 8 through 11, making them both unusual and exotic. There are around 300 unique kinds and varieties of hoya flowers, some of which are very stunning, such as the hoya rope plant. Leafy Place characterises them as draped succulents and says that they are also known as Hindu rope plants. They are recognisable by the crinkled and twisted appearance of their leaves, but sometimes they exhibit signals of distress that need prompt attention from the caretaker.


Excessive exposure to sunlight or certain fungal diseases may be the culprits behind discoloration or spots that appear on hoya plant leaves. These dangers should be reduced significantly with adequate care.

Types of Hoya Flowers

According to Homestead Brooklyn, hoya plants are sometimes referred to as “porcelain flowers” because the blossoms have a look that is virtually identical to that of ceramics. They are available in a wide range of dimensions and hues, and the majority of them exude an enticing aroma. Because hoyas are members of the milkweed family, the flowerheads of their flowers may be sticky, and the seeds of their fruits have long, silky hairs that draw attention to them.

Flowers of the hoya plant develop umbels, also known as clusters, which expand outward from their centres to form convex or flat-topped tops. The flowers themselves are composed of three distinct elements: the calyx, which is the protective green sheath around the flower, the corolla (the petals), and the corona (an appendage that sticks out from the corolla). The petals may be moulded into a variety of shapes, including an urn shape, a bell shape, a claw shape, or another shape. There are hoyas that have white flowers with yellow centres, white flowers with yellow petals, and pink petals with green coronas. You may also find hoyas with little white blooms that have dark purple cores. The blooms of Hindu rope plants are often a delicate pink, white, yellow, orange, or red colour, and their centres include white coronas that are surrounded by red rings for emphasis. The umbels have the appearance of spherical balls, and each one may contain anywhere from 30 to 50 blooms.

Hoyas are susceptible to the same diseases and pests that affect other types of houseplants. If the leaves on your hoya plant are turning brown and dropping off, this may be an indication that the plant is receiving an excessive amount of sunlight. If you try relocating it to a different location that is not exposed to direct sunlight, you can determine whether or not this resolves the issue. If the hoya’s leaves are shrivelled, this may indicate that the plant is drying out, that there are difficulties with the roots, or that mealybugs are present.

Problems That Affect Hoyas

Hoyas have been known to develop a sticky fluid on their leaves, which is another indication that the plant is infested with pests such as mealybugs or aphids. Hoya fungal leaf patches are another concern, and according to The Oregonian, this might be an indication of root rot, which is a fungus that can be produced by overwatering the plant. Never use tap water to water hoyas since doing so may lead to mineral salt accumulation, which in turn can cause white spots to appear on hoya leaves.

The Hoya kerrii plant, often known as the lover plant because to the heart-shaped leaves it bears, is discussed in detail in the article “Leafy Place” since it is another popular variety of the genus Hoya. They are not as simple to locate as other types of hoya, and maintaining them requires more effort than usual. It is possible that your Hoya kerrii may turn yellow if it is exposed to an excessive amount of sunshine. You should not expose them to an excessive amount of sunshine, you should not overwater them, and you should keep them in warm, damp areas within your house.

Hoyas, including Hindu rope plants, thrive in well-drained soil and respond well to a combination of orchid mix, potting mix, and perlite in which all three components are present in equal quantities. These plants should not be allowed to become too dry, nor should they be allowed to sit in water that is too wet for long periods of time. They thrive best in temperatures between 60 and 80 degrees Fahrenheit and need around six hours of indirect light every day. They may be brought outside when the temperature is at least 50 degrees Fahrenheit higher than it is indoors.

Saving Your Hoya Plant

Neem oil or insecticidal soap, when combined with warm water, may be used as an effective treatment for pest infestations. Alternately, the plant’s container could need to be changed out. Select a container that has drainage holes, and always keep fresh potting soil on available. After meticulously removing any dead leaves, you may next carefully pry the hoya plant out of the previous container it was growing in. Loosen the hoya’s root ball all the way around with a knife, and then pull it out of the ground.

To loosen the old dirt and give the roots a little bit of a massage, run the root ball under water that is lukewarm. Hold off on moving it until you have the new container ready with the potting mix. Put the hoya in the pot so that it is standing upright and centred, and place the root ball so that it is equally spaced just below the rim of the pot. Increase the amount of dirt in the container, then thoroughly water it.

Run the root ball under tepid water to remove the old soil and massage the roots a bit. Let it sit while you fill your new container with potting mix. Place the hoya straight and centered with the root ball evenly positioned right below the top of the pot. Fill the pot with more soil and water thoroughly.