Hoyas are extremely popular houseplants and for good reason. These attractive trailing plants are characterized by thick, waxy leaves and long tendrils. They make fantastic hanging plants, but can also easily climb trellises and moss poles. Hoyas are semi-succulent epiphytic plants - meaning that they naturally pull nutrients and moisture from the air, and their thick leaves hold water similar to succulents. This makes them drought-tolerant, and, overall, relatively easy to care for.
Hoya obovata is a unique hoya variety that is identified by its large, deep green oval leaves that often have a silver ‘splash’ pattern. It is typically harder to find than the more common Hoya carnosa, but is known for being a faster-growing variety. Its unique appearance makes it sought after by collectors and beginners alike.
|Botanical Name||Hoya obovata|
|Common Name||Hoya obovata, wax plant|
|Mature Size||Can grow 12-20ft in length|
|Sun Exposure||Full sun-bright, indirect light|
|Soil Type||Rich, well-draining|
|Bloom Time||Spring, summer|
|Flower Color||Light pink, white|
Hoya Obovata Care
Hoya obovata requires very little ongoing care and maintenance. They do best in bright, sunny windows and require infrequent watering. One important aspect of hoya care is proper fertilization - these fast-growing foliage plants benefit from regular fertilization during the spring and summer months to keep their growth healthy and full.
While they are typically not grown for their blooms (and they usually don’t bloom until they are at least two to three years old), hoya flowers are quite stunning and fragrant if you are lucky enough to see them. If your hoya does bloom, it is important that you do not dead-head the flower stalk as the hoya will bloom again from the same stalk within the next couple of years.
Hoya obovatas require consistently bright light in order to thrive. In their natural habitat, they grow up among trees and receive bright, dappled light.
If they are grown outdoors, keep the plants away from harsh, direct rays as they can get sunburned. When grown indoors, however, situate your hoya obovata in the brightest location that you have. A sunny south-facing window is ideal.
Airy, well-draining soil mixes are best for hoya obovata plants as the roots require good drainage and aeration. A mix of peat, perlite, and orchid bark is popular for hoyas as it provides adequate drainage and room for the roots. Alternatively, a mix of potting soil, pumice, compost, and orchid bark mix is also appropriate.
Hoya obovatas are very sensitive to overwatering and should be allowed to dry out thoroughly between waterings. The frequency of watering for your hoya obovata depends on a variety of factors such as the amount of light it receives, the type of pot it is planted in (plastic, ceramic, terracotta), the potting mix it is growing in, and the season. Wait until the soil has dried out and then water thoroughly. In the fall and winter months, cut back on watering while the plant is in dormancy.
Temperature and Humidity
Since they are epiphytic, hoya obovatas appreciate humidity and/or regular misting. However, this is not a requirement, and hoyas can typically thrive in regular household temperatures and humidity levels.
Avoid placing your hoya obovata too close to fans or heat vents/drafty windows to ensure they are not exposed to any extreme temperatures.
Hoya obovatas are fast-growing plants that require regular fertilization during the spring and summer to help support their growth.
To encourage foliage growth, use a fertilizer that is high in nitrogen. If you notice that your hoya is about to bloom, switch to a fertilizer that is higher in phosphorus to encourage vigorous blooming.
Hoyas should be fertilized approximately twice a month during the spring and summer seasons.
Is Hoya Obovata Toxic?
All species of hoya plants, including hoya obovatas, are non-toxic to humans and pets.
Propagating Hoya Obovata
Hoyas are easy to propagate in soil and in water. Simply take cuttings from a healthy Hoya obovata plant, remove the lower leaves from the stem, and place the exposed nodes in water or soil. The nodes can be found at the spots where the leaves grow from the stem. If you are propagating in soil, ensure that the soil is kept moist until the new plant is established.
Potting and Repotting Hoya Obovata
Hoya obovata does not require regular repotting and can tolerate being slightly rootbound. In fact, rootbound hoya plants are more likely to bloom. Repotting your hoya obovata every two to three years should suffice.
These trailing plants do well in a variety of different pots, but you should ensure that the pot has a drainage hole at the bottom to prevent waterlogged soil and root rot.
Terracotta pots tend to be a popular choice for hoya obovata plants because the weight of the pot helps to offset the weight of the plant as it matures, but any type of pot with adequate drainage is appropriate.
Hoyas are susceptible to a range of common ‘sap-sucking’ houseplant pests including aphids, mealybugs, scale, and spider mites. They are also susceptible to a disease called sooty mold which grows on sweet, sappy residues on the leaves.
The best way to avoid sooty mold on your hoya obovata is to clean the leaves regularly and ensure that any sap that leaks onto the leaves is not left there for extended periods of time.