Hoya Kentiana, also known as the wax plant, is an easy to grow houseplant prized for its waxy foliage and sweetly scented flowers. With the right care, these vining epiphytes can thrive for many years. Here is a detailed guide on how to grow and care for Hoya Kentiana.
Light Requirements
Hoya Kentiana thrives in bright, indirect light. Place it near an east or west facing window where it will receive plenty of gentle sunlight. Direct south facing light may scorch the leaves. Provide at least 4 hours of sunlight daily. Insufficient light will result in fewer flowers.
Watering
Allow the soil to partially dry out between waterings. Water thoroughly until it drains from the drainage holes at the bottom of the pot. Then allow the excess water to drain away before returning the plant to its spot. Take care not to overwater as Hoyas are prone to root rot in soggy conditions.
Soil
Use a well-draining potting mix, such as a peat-based soil amended with perlite or bark chips to improve drainage. Hoyas are epiphytes that grow on trees in tropical environments. They prefer an airy soil that mimics these conditions.
Temperature and Humidity
Hoya Kentiana thrives in average room temperatures between 65-80°F (18-27°C). Keep away from cold drafts. Higher humidity is appreciated, especially in dry environments. Place the pot on a pebble tray or mist the leaves occasionally to boost moisture levels around the plant.
Fertilizer
Feed monthly in the growing season with a balanced liquid fertilizer diluted to half strength. Reduce feeding in winter. Hoyas are not heavy feeders. Too much fertilizer can cause leaf burn.
Pruning
Prune off any dead or damaged vines as needed to maintain an attractive appearance. To encourage bushiness, pinch off the tip of each vine once it grows 6-12 inches long. This tells the plant to produce two new shoots at that point.
Propagation
Hoya Kentiana is easily propagated from stem cuttings in spring and summer. Choose a healthy stem with 3-4 leaves. Remove the bottom leaves and cut just below a node. Dip the cut end in rooting hormone then plant in potting mix. Keep warm and moist until new growth emerges.
Repotting
Repot in spring every 2-3 years as the plant becomes rootbound. Move it to a container one size larger with fresh potting mix. Take care not to damage the roots when repotting Hoyas.
Common Problems
Leaf drop – Caused by overwatering or insufficient light. Allow soil to dry between waterings and move to a brighter location.
Few flowers – Increase sunlight exposure to encourage more blooms. Flowers also diminish if the plant is rootbound.
Leggy growth – Give more sunlight. Pinch back vines to encourage bushy growth.
Mealybugs – Isolate and remove with cotton swab dipped in alcohol. Apply insecticidal soap spray if infestation persists.
FAQs
How long do Hoya Kentiana flowers last?
The waxy star-shaped flowers typically last up to 6 weeks before fading. Each flower cluster can bloom repeatedly over the course of a few months.
What are the ideal growing conditions for Hoya Kentiana?
Hoya Kentiana thrives in household conditions with average room temperatures, bright indirect light, average indoor humidity, and well-drained soil that is allowed to partially dry out between waterings.
Should I mist my Hoya Kentiana?
Occasional misting can help boost humidity levels around the plant. But take care not to get the fuzzy leaves too wet as this can promote fungal diseases. It’s better to use a pebble tray for added humidity.
How do I get my Hoya Kentiana to bloom?
Increase light exposure, avoid moving the plant, use a blooming houseplant fertilizer, and ensure the plant is not rootbound. Mature, well-cared for plants bloom readily while plants that are stressed typically won’t flower.
Why are the leaves on my Hoya Kentiana turning yellow?
Yellow leaves usually indicate overwatering. Allow the soil to dry out more between waterings. Root rot can also cause yellowing. Check roots and repot in fresh dry soil if they are rotten.
Should I prune my Hoya Kentiana?
Light pruning to remove dead or damaged vines can help maintain an attractive appearance. Pinching off long vine tips encourages bushy growth. Avoid heavy pruning which can stunt the plant’s growth.
Conclusion
With its shiny leaves and fragrant blooms, Hoya Kentiana makes a great low maintenance houseplant. Place it in bright filtered light, water thoroughly when the top few inches of soil become dry, and fertilize monthly. Repot when rootbound and prune occasionally to direct its growth. Avoid overwatering which can lead to root rot. With proper care, this attractive trailing plant will provide enjoyment for many years.