Wax Plant

Hoya plants, native to Southern India and found throughout Eastern Asia, are often called Wax Plants due to their foliage and flowers having a wax-like feel to them.

Given enough light, the Hoya plant will produce lovely delicate flowers. In fact, it is often known as Porcelain Flower due to these very blooms!

Once your Hoya has begun to bloom, try not to move it around too much as changes in light levels can cause the flowers to shrivel up and fall off.

Hoyas don’t mind being root bound so you can keep them in the same pot for years just as long as you don’t forget to fertilize during the warmer months.

All Hoya plants need to be potted in planters that have drainage. These plants are very sensitive to too much water, so be sure to use a well-draining potting mix as well.

The vine-like Hoyas can be looped around a wire hoop or small trellis and secured loosely with florist’s wire.

Common Symptoms

  • Yellowing leaves:This can be due to the plant being too cold. Keep your plant out of cold areas or drafts. If you have recently moved your plant to a new environment, it may be that it is simply adjusting. Check your watering schedule to ensure that you are not over-watering.
  • No blooms:Some species of Hoya do not bloom, so keep that in mind. However, for the fully mature flowering types (5-7 years), the biggest cause is conditional. It may need more light, less or more water or fertilizer. You will need to assess its situation and adjust accordingly. Keep in mind that the Hoya will take some time to adjust to its new conditions, as well.
  • Dropped flower budsare often caused by soil that is too dry or too wet. Also, remember not to move your Hoya while it is blooming as that may be the cause of your dropped flower buds.
  • Pests:Aphids enjoy the sweet juices of the Hoya plant, but most common house plant insecticide sprays, Neem Oil or insecticidal soap will easily keep them under control should you find them on your plant. Deal with any Mealybugs in the same manner. Spider mites may also be a problem, but if you mist your plant regularly you should be free from a spider mite invasion.

Care Instructions

  • Origin: India and East Asia
  • Height: Trailing stems can grow to 3m, depending on type
  • Light: Bright indirect light all year round. Little direct sun can be fine, as long as you protect it from harsh summer sun, which can scorch the plant. Hoyas will live in medium light, but will not bloom.
  • Water: Water thoroughly spring through autumn, allow the potting mix to dry out between waterings. Don’t let the plant sit in soggy soil. Reduce watering in winter.
  • Humidity: The Hoya plant prefers relative humidity. You can mist the plants to clean them and raise humidity BUT do not mist when the plant is in bloom.
  • Temperature: Keep your Hoya warm all year round. Temperatures of 18-24°C are ideal with a minimum of 16°C.
  • Soil: Use a well-draining, light soil.
  • Fertilizer: Feed the Hoya monthly during spring through autumn with high-potassium fertilizer diluted by half. Withhold the feeding during winter.
  • Repotting: As Hoyas don’t mind being root–bound you may only need to re-pot your plant every 2-3 years or when it really outgrows its pot. When you do re-pot, do so in early spring and choose a new pot that is a little bit larger. Keep in mind that the Hoya blooms best when it is pot bound. Never re-pot your Hoya while it is in bloom.
  • Pruning: The vine-like Hoyas can be pruned back if you want to keep your plant compact. The best time to prune is early spring, before Hoyas start their most vigorous growth period. Don’t prune off the leaf-less spurs (where flowers have been produced previously) as the flowers will bloom on the same spurs year after year.
  • Propagation: Cuttingstake 7cm stem tip cuttings in spring. The cuttings should include at least one pair of leaves. They will easily root in a moist potting mix.

If in stock, shop for Wax Plant here.