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Sweetheart Hoya  

Hoya kerrii

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Sweetheart Hoya is part of the Hoya genus and its scientific name is Hoya kerrii.

A slow growing Hoya with large, fleshy, heart shaped leaves. Once rootbound it blooms often. Hoyas are tropical vines that grow better if kept above 50°, even though some species tolerate near freezing temperatures for a while. They grow in the shade and don’t need a lot of water. Keep the soil slightly dry. Wet soils can kill a Hoya fast. Hoyas are very good indoors and are very popular for that reason. They don’t like big pots and bloom better when root bound. Some people grow them in hanging baskets and let them cascade. Others use a small trellis to wrap the vines around. Hoyas are epiphytes, like orchids, therefore the potting soil has to be porous. I suggest that you get a good quality potting soil and mix about 1/3 of an orchid mix (bark, perlite, charcoal.) Fertilization is average. Once Hoyas start to bloom they do so almost continuously but more in during the warm weather. Some Hoyas are also very fragrant and some species even smell like chocolate.

FAMILY : Asclepiadaceae
ORIGIN : Thailand
SIZE : epiphyte vine
LIGHT REQUIREMENTS : bright shade/partial sun
MIN. TEMP. : low 50’s
FLOWER : summer


This variety typically blooms in the following colours:   Cornell Red. The mature flowers are of a clustered form.

Sweetheart Hoya grows as a perennial and is a flowering succulent / houseplant. Being a perennial plant, it tends to grow best over several years (approx 3 years and greater).

Sweetheart Hoya is known for growing to a height of approximately 9.91 feet (that's 3.05 metres in metric) with a scandent habit. Expect blooming to occur in late spring.

Thailand is believed to be where Sweetheart Hoya originates from.

Sweetheart Hoya is great for inexperienced gardeners and those that like low maintainance gardens.

This plant info is provided by the myfolia gardener's wiki. All details about Sweetheart Hoya have been kindly provided by our members.

How to grow Sweetheart Hoya

  • Dappled Sun

  • Partial Sun

  • Very Low

Maintain this plant in the dry side only watering about once a month or when the leaves look dehydrated.

Plant in a location that enjoys dappled sun / partial sun and remember to water very sparingly. The USDA Zones typically associated with Sweetheart Hoya are Zone 9 and Zone 11. Sweetheart Hoya requires a soil ph of 6.1 - 7.5 meaning it does best in weakly acidic soil - weakly alkaline soil. Keep in mind when planting that Sweetheart Hoya is thought of as hardy, so this plant will survive close to or on freezing temperatures.

See our list of companion Plants for Sweetheart Hoya to see which plants you should plant in close proximity to encourage growth.

Growing Sweetheart Hoya from seed

Transplanting Sweetheart Hoya

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Sweetheart Hoya is a hardy plant.

How long does Sweetheart Hoya take to grow?

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Other names for Sweetheart Hoya

Valentine Hoya

Valentine Hoya

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