What’s the problem?
My Hoya carnosa cutting, taken from my father’s treasured plant, bloomed once, in 2022, but has not flowered since. How can I encourage it?
Diagnosis
Hoyas, often known as wax plants, have a reputation for thriving on “benign neglect”. They flower best when slightly stressed, as this triggers their reproductive mode. Regular watering and abundant nutrients will encourage leaf growth rather than blooms.
Prescription
Allow the soil to completely dry out between waterings – typically, every two to four weeks in autumn and winter, and more often in warmer months. Limit fertiliser applications, as hoyas flower better in nutrient-poor conditions. Ensure bright but indirect sunlight, as too much direct sunlight or a lack of darkness at night can disrupt their flowering cycle. Conversely, some people recommend “sun-stressing” their hoyas. Also, consider a slight drop in temperature overnight.
Prevention
Maintain a balance between attentive care and minimal interference. Aim for indirect lighting, cooler night-time temperatures, and less frequent feeding and watering. The mild stress should boost flowering potential.
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