How to water
As for the hoya baths, they vary according to the season. During the hottest periods, it is abundantly watered. However, it is good to carefully check the substrate before proceeding. If it is still damp from the previous wetting, it is not recommended to irrigate again in order to avoid the formation of water stagnation. Furthermore, it is also important to check for the presence of water in the saucer that could lead to the submersion of the roots. Water stagnation could cause root rot, one of the main causes of plant death. During the coldest months, the frequency of irrigation should be reduced, but it is always a good idea to check that the soil does not remain completely dry between one wetting and the next.
How to cure it
Hoya is a rustic plant and as such it does not particularly fear cold climates. It is a good rule, however, that temperatures should be around a maximum of 27 ° C and not fall below 10 ° C. It is recommended to place the plant in a sunny place, but without exposing it directly to sunlight. Also a recommended practice for increasing leaf growth is the use of a metal circle around which to place the stems. It is not necessary to prune the hoya, but only to eliminate the leaves and flowers that dry out over time. As regards the multiplication of the plant, it is possible to proceed by cuttings at the beginning of the summer by taking the cuttings from the more robust areas of the hoya or by seed. For the repotting of the plant one only proceeds when the hoya has grown excessively to be contained in the starting vase.
How to fertilize
To fertilize hoya correctly it is good to proceed once every 3 or 4 weeks using a liquid fertilizer. This fertilizer will be diluted with irrigation water in slightly lower doses than reported on the package. We recommend the use of fertilizers that are rich in both the fundamental chemical macrolelements such as: nitrogen, phosphorus and potassium as well as chemical microelements such as: copper, iron, magnesium, manganese and boron. Fertilizations must be suspended completely during the coldest months. In this period, in fact, hoya begins its period of vegetative rest and fertilization is not necessary. The ideal soil for the plant is a fresh and rather well-draining soil that can be added to coarse sand to promote good water drainage.
Being a rustic plant, hoya does not particularly fear attack by insects and parasites. Rather, it is possible that the plant suffers from the bad cultivation methods used. Among these, one frequently risks over-irrigating hoya. The most obvious sign is the presence of leaves that begin to take on a yellowish color. The most effective remedy is to wait for the soil to dry and to remove the damaged leaves. If we continue to supply the water plant, we risk to face root rot and the consequent death of the plant. If, on the other hand, the hoya leaves appear to be browned or burned, it is possible that the plant has been excessively exposed to the sun. The best remedy is to move the hoya immediately from the previous position.