Hoya Grey Ghost Plant Care Guide

Hoya Grey Ghost, also known as Hoya carnosa ‘Grey Ghost‘ is a captivating and ethereal houseplant that has stolen the hearts of plant enthusiasts worldwide. With its unique variegated foliage and clusters of star-shaped, fragrant flowers, this plant adds a touch of enchantment to any indoor space. 

This plant is a favorite among plant enthusiasts due to its striking appearance and relatively easy care requirements. If you’re considering adding a Hoya ‘Grey Ghost’ to your collection, here’s a care guide to help you keep it thriving:

Hoya Grey Ghost Plant

Hoya ‘Grey Ghost,’ also known as Hoya carnosa ‘Grey Ghost,’ is a stunning and unique variety of the Hoya plant known for its beautiful grayish-green leaves with silver variegation. It belongs to the Apocynaceae family and is native to Southeast Asia and Australia. 

This cultivar of Hoya carnosa showcases an enchanting blend of creamy gray and lush green variegation on its leaves. With its waxy, glossy foliage and occasional clusters of fragrant pink and white star-shaped flowers, Hoya Grey Ghost adds an ethereal charm to any indoor space. 


Hoya Grey Ghost is a cultivar of the species Hoya carnosa, a member of the Apocynaceae family. The exact origin of the Hoya Grey Ghost is not well-documented, but it is believed to have been first discovered as a natural mutation or sport of Hoya carnosa. 

Unique Features Of Hoya Grey Ghost


One of the most distinctive features of the Hoya Grey Ghost is its stunning foliage. The leaves of this plant are characterized by their striking variegation, which showcases a beautiful combination of different shades of grey, silver, and green. The variegation varies from leaf to leaf, creating an alluring and visually appealing effect that captures the observer’s attention.

Leaf Shape and Texture 

The leaves of the Grey Ghost are succulent-like in nature, relatively thick and fleshy, giving the plant a resilient and substantial appearance. The leaves are typically elliptical or ovate in shape, and their slightly waxy texture adds to the plant’s charm. This texture not only enhances the overall aesthetic but also serves a functional purpose by helping the plant retain moisture.

Growth Habit

The Hoya Grey Ghost is a trailing or vining plant that tends to produce long, elegant stems. This growth habit makes it an excellent choice for hanging baskets, where its cascading vines can drape gracefully over the sides, creating a captivating display. The vining nature of the Grey Ghost also makes it a suitable choice for trellises or other support structures.

Hoya Grey Ghost Flowers

While the foliage is the primary highlight of the Grey Ghost, it also produces clusters of delicate, star-shaped flowers. The flowers emerge from the nodes along the vines and exhibit a light, sweet fragrance. The blooms typically have a creamy-white to pale pink coloration, which serves as a beautiful contrast to the grey and green foliage.

Air-Purifying Properties

Like many other houseplants, HoyaGrey Ghost contributes to improved indoor air quality by naturally purifying the air. It absorbs pollutants such as formaldehyde and benzene, creating a healthier living environment for its inhabitants.


As with many plants in the Hoya family, Hoya Grey Ghost contains sap that can be mildly toxic to pets and humans if ingested. Keep it out of reach of children and pets and avoid placing it in areas where curious animals might have easy access.

Hoya Grey Ghost Care Guide

To keep the Grey Ghost thriving and displaying its unique features to the fullest, it’s important to provide the right care:


Hoya ‘Grey Ghost’ prefers bright, indirect light. Avoid exposing it to direct sunlight, especially during the hottest parts of the day. A north- or east-facing window with filtered light is ideal. If the plant doesn’t receive enough light, it might not produce as many leaves or may lose its variegation.


Allow the top inch or so of the soil to dry out before watering. It’s essential not to overwater your Hoya ‘Grey Ghost’ as it is susceptible to root rot. Water thoroughly when you do water, but make sure the pot has good drainage to prevent waterlogging.


Hoyas, including the ‘Grey Ghost’ variety, appreciate higher humidity levels. To mimic their natural tropical environment, consider placing a tray of water near the plant or using a humidity tray. Regular misting can also be helpful, especially in dry indoor environments.


Keep your Hoya ‘Grey Ghost’ in a warm environment, ideally between 65°F to 80°F (18°C to 27°C). Avoid exposing it to cold drafts or sudden temperature changes, as this can cause stress to the plant.


Use a well-draining and aerated potting mix for your Hoya ‘Grey Ghost.’ A mixture of peat, perlite, and orchid bark works well. Good drainage is crucial to prevent overwatering issues.


During the growing season, which is typically spring and summer, feed your Hoya ‘Grey Ghost’ with a balanced, diluted liquid fertilizer every 4-6 weeks. Avoid fertilizing during the dormant winter months.

Support and Training

As Hoya Grey Ghost grows, it will benefit from some support to guide its climbing or trailing nature. Use a trellis, moss pole, or stakes to help the plant establish its desired shape. Gentle training and tying can also encourage the plant to climb more effectively.

Pruning Hoya Grey Ghost

Pruning is essential for maintaining a healthy and attractive Hoya Grey Ghost. Prune your Hoya Grey Ghost to control its size and shape, promote bushier growth, and remove any dead or yellowing leaves. Use clean, sharp pruning shears to make clean cuts just above a node. You can propagate the cuttings to grow new plants if desired.


The Hoya Grey Ghost prefers to be slightly pot-bound. Repotting is usually necessary every two to three years or when the plant outgrows its current pot. Choose a well-draining potting mix suitable for epiphytic plants or create a mix of orchid bark, perlite, and peat moss. When repotting, be gentle with the delicate roots.

Propagation Of Hoya Grey Ghost

You can propagate Hoya Grey Ghost through stem cuttings. 

Stem Cuttings

  • Select a healthy stem with a few leaves and use a sharp knife or scissors to make a clean cut just below a node (the point where leaves emerge from the stem).
  • Ensure the cutting has at least one or two nodes and a few leaves for successful rooting.
  • Place the cutting in a glass of water or directly into a moist potting mix, ensuring the node is submerged or buried in the soil.
  • Keep the cutting in a warm, bright location, away from direct sunlight, and maintain humidity by misting regularly.
  • Once roots develop, which typically takes a few weeks, transplant the new plant into a suitable pot with well-draining soil.

Tips: Remember, propagation success can vary, and patience is key. Not all cuttings will successfully root, so it’s a good idea to take multiple cuttings to increase your chances of success.

Common Leaf Issues

Like any houseplant, Hoya Grey Ghost may experience some common leaf issues that can affect its appearance and health. Here are some common leaf issues to watch out for:

Yellowing Leaves: Yellowing leaves can be a sign of overwatering, underwatering, or poor drainage. Ensure the plant receives the right amount of water and the soil is well-draining. Adjust your watering schedule accordingly.

Brown Leaf Tips: Brown tips on the leaves may indicate that the plant is not getting enough humidity. Increase the humidity levels by misting the leaves regularly or using a humidifier.

Leaf Curling: Curling leaves can be caused by underwatering, low humidity, or exposure to cold drafts. Make sure the plant is adequately watered and kept in a warm, humid environment.

Brown Spots or Edges: Brown spots or edges on the leaves may be due to low humidity, over-fertilization, or exposure to direct sunlight. Maintain proper humidity levels, avoid excessive fertilization, and protect the plant from direct sunlight.

Leaf Dropping: Dropping leaves can be a response to changes in environmental conditions, such as temperature fluctuations or being moved to a new location. Try to maintain a consistent environment and avoid frequent repositioning.

Common Pests and Diseases

Hoya Grey Ghost, like any other houseplant, can be susceptible to certain pests and diseases. Being aware of these potential issues and knowing how to identify and treat them is important for maintaining the health of your plant. Here are some common pests and diseases that can affect Hoya Grey Ghost:


Mealybugs (Pseudococcidae)

Mealybugs are small, soft-bodied insects that often appear as white, cottony masses on the leaves and stems of plants. They feed by piercing the plant tissue and sucking out the sap, leading to weakened growth and yellowing leaves.

To control mealybugs, manually remove them with a cotton swab dipped in rubbing alcohol. You can also use a solution of water and mild liquid soap to gently wipe the affected areas. If the infestation is severe, consider using an organic insecticidal soap or neem oil spray.

Scale Insects (Coccoidea)

Scale insects are tiny, oval-shaped pests that attach themselves to the stems and leaves of plants, forming hard, protective shells. They feed on the plant’s sap, causing yellowing, stunted growth, and leaf drop.

Like mealybugs, you can manually remove scale insects by gently scraping them off with a soft brush or cotton swab dipped in rubbing alcohol. For severe infestations, consider using horticultural oil or insecticidal soap sprays to control the population.

Spider Mites (Tetranychidae)

Spider mites are tiny arachnids that are difficult to spot with the naked eye. They often leave a fine webbing on the leaves and feed by piercing the plant cells, causing stippling, discoloration, and leaf curling.

 Increase humidity around the plant, as spider mites thrive in dry conditions. Regularly mist the leaves and wipe them with a damp cloth to deter these pests. In case of a severe infestation, use insecticidal soap or a neem oil-based spray, making sure to cover the undersides of the leaves where spider mites tend to hide.


Root Rot 

Root rot is a common fungal disease caused by overwatering or poorly drained soil. It leads to rotting of the roots, resulting in wilting, yellowing leaves, and stunted growth.

If root rot is suspected, carefully remove the plant from the pot and examine the roots. Trim away any mushy or discolored roots, and repot the plant in fresh, well-draining soil. Ensure that the pot has proper drainage to prevent future occurrences of root rot. Adjust your watering practices to allow the soil to dry out slightly between waterings.

Leaf Spot

Leaf spot diseases are fungal infections that cause circular or irregular brown spots on the leaves. These spots may have a yellow halo around them, and severe cases can lead to defoliation.

Remove and destroy the affected leaves to prevent the spread of the disease. Avoid overhead watering, as it can contribute to the development of leaf spots. Ensure good air circulation around the plant and avoid overcrowding. If the disease persists, consider using a fungicidal spray following the manufacturer’s instructions.

It is important to regularly inspect your Hoya Grey Ghost for any signs of pests or diseases. Early detection and appropriate treatment increase the chances of successful control. 

Hoya Grey Ghost VS Nova Ghost

Hoya Nova Ghost features variegated leaves with creamy white and green hues, while Grey Ghost displays silver-grey foliage. Nova Ghost has pink and white flowers, while Grey Ghost has greenish-white blooms. Nova Ghost thrives in low light, and Grey Ghost prefers moderate light. Both are captivating houseplants, each with a unique and enchanting appearance.


In conclusion, Hoya ‘Grey Ghost’ is a visually striking plant that can be a beautiful addition to your indoor plant collection. With the right care, it can thrive and reward you with its unique variegated foliage and occasional clusters of fragrant, star-shaped flowers. Remember to provide it with the proper light, water, humidity, and temperature conditions, and your ‘Grey Ghost’ will flourish for years to come.

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