The Gynura aurantiaca plants are grown in a shady or semi-shady place, but well-luminous; the more the plant is exposed to light, the more the hair covering the leaves assumes an intense colouring. They fear the cold, therefore they are cultivated as apartment plants; it is also possible to use the gynures as annual in the garden, in this case they tend to develop a lot, up to a few metres in length.
The ideal temperature is around 20 °C and should never be below 10 °C.
As for the amount of water to be supplied to the plants of Velvet purple, from March to October, the soil should be kept constantly moist, watering regularly, during the cold months the Gynura aurantiaca watering is sporadic. It is a plant that likes an environment with high ambient humidity; it is therefore possible to spray the leaves, especially when the temperature is high.
During the vegetative period it is advisable to provide fertilizer for green plants, every 10-15 days, mixed with the water of the watering.
The specimens of Velvet purple are cultivated in a very rich and well drained soil, formed by leaf mould, compost mould and little sand which allows to avoid the formation of water stagnations which may be harmful for the health of these specimens. Usually, they have a fairly rapid growth, therefore, it is good to repot them every 2-3 years at the beginning of spring.
To keep the plant compact it is also possible to shorten it to the ground at the beginning of autumn.
The multiplication of the specimens of this type happens by cutting, in any period of the year; these thin stems root with great facility. The cuttings must be placed in a mixture of peat and sand.
Purple velvet – Gynura aurantiaca: Parasites and diseases
Gynura aurantiaca is generally not affected by pests or diseases, although excessive water stagnation can promote the development of root rot. Sporadically, the purple velvet plant can be attacked by aphids, which can be eliminated with the use of specific insecticide products or with the use of natural preparations based on nettle or garlic boiled in water and vaporized on the leaves.
The plant may also have leaves that lose their characteristic color, a symptom that the specimen is placed in a place not very bright.