Hoya coriacea (silvery leaves)

Specifications:

Species: H. coriacea

Common name: Waxflower, waxplant, waxvine

Origin: South East Asia

Flower colour: Fuzzy yellow flowers with purple or red centers

Genus: Hoya

Family: Apocynaceae (Asclepiadaceae)

Kingdom: Plantae

Type:EpiphyticFlowering vine

Summary:

• Low maintenance
• Moderate to high humidity
• Low watering requirements
• Temperatures no lower than 57 degrees F
• Organic, well draining soil

Light Requirements:

• All hoyas do well in bright indirect light, and Hoya coriacea is no different. 
• Choose a south-facing window and esure that your hoya receives around 6 hours minimum of light to help it grow fast and well. 
• Without proper light, growth can become stunted; blooming is also affected to the point that the hoya does not put out flowers at all. 
• During overcast days, you can use artificial yellow light to maintain growth levels and ensure blooming.

Temperature Requirements:

•  Hoyas are endemic to the tropics, and the temperatures of the region need to replicated in order for them to grow. 
• For Hoya coriacea, the ideal temperature range is be no lower than 57 degrees F. Any lower wil cause the plant to die out. 
• During winter months, artifical lights, heating pads and red lights can help keep temperatures in the ideal range.

Humidity Requirements:

• For Hoya coriacea, interior humidity levels between 40 and 60 percent are good for growth, although they thrive in humidity levels. 
• On the other hand, low humidity causes leaf yellowing, drooping, dropping, and curling.
• Put your indoor plants near to one another and mist the leaves every three to four days. Rainfall that occurs naturally helps to increase humidity.
• Humidity levels can also be helped using pebble trays. Alternately, you can use an electric humidifier to artificially increase humidity. Additionally, you might place your plant in a moist area like the kitchen or bathroom.

Watering Requirements:

• Hoyas do not require excessive moisture due to the way their huge leaves absorb moisture, and when they are overwatered, root rot occurs.
• Maintain the soil as much as you can, and before watering, make sure the top 25–30% of the soil has dried up. Give them a good soak in water is the most important next step.
• In the summer, water your Hoya coriacea once every 8 to 10 days. Since the soil takes longer to dry out in the winter, cut the rate in half.

Soil Requirements:

• Hoyas prefer permeable, well-draining soil as their preferred environment. A mildly acidic to neutral pH range of 6.1 to 7.5 is ideal for Hoya coricea
• Hoya coriacea would grow well in cactus potting mixes as well. Simple potting soil is not suitable for since the roots won't get enough oxygen.
• You can mix se 1 part potting soil, 1 part peat moss, and 2 parts perlite to get a fantastic, loose soil mixture.

Fertilizing Requirements:

• Hoya coriacea does require more assistance during the growing season. An ideal fertiliser ratio is 10-10-10 NPK, which is what the majority of indoor houseplant fertilisers contain.
• Every two to three weeks during the growing season, you can use a liquid fertiliser solution by reducing it to half strength. During the plant's winter dormant season, use none.
• If you use well-rotted compost instead of potting soil, you won't need to fertilise it at all. Additionally, you can add slow-release fertiliser granules to the soil before planting in the spring.