How to irrigate
As for the correct irrigation of the Mandevilla Laxa, it is good to proceed by ensuring that you always have a rather damp soil. In this way the flowering of the plant will be copious and last longer. However, in case of prolonged drought the Mandevilla Laxa manages to survive equally. It is, in fact, endowed with long fleshy roots that are able to preserve water and nutrients. In the event that our Mandevilla Laxa is grown in the open ground, it is advisable to drastically reduce the frequency of wetting so as to leave the plant almost complete autonomy. In this case, even the rains alone may be sufficient and action must be taken only in the presence of a prolonged period of drought. It is recommended to use mineralized water for irrigation and that it is almost completely free of calcium.
How to cure it
Regarding the exposure of the Mandevilla Laxa, it is recommended to expose the plant in a very sunny area (such as, for example, a wall facing south) where it can benefit from sunlight for at least 6 hours a day. In this way a copious and prolonged flowering will be possible. It is good to guarantee Mandevilla Laxa a certain environmental humidity through sporadic wetting of the floor or through the use of water-filled saucers and expanded clay. For pruning it is possible to proceed by removing the diseased or faded branches by cutting them off completely or by shortening the healthy ones of 1/3 or 2/3 at the most. The multiplication of Mandevilla Laxa is a rather complicated process. It is not easy to obtain the rooting of the cuttings taken from the mother plant.
How to fertilize
It is recommended to fertilize the Mandevilla Laxa once every two weeks or so during the entire duration of its vegetative period. It is good to use a liquid fertilizer that can be diluted with the irrigation water in slightly lower doses than what is indicated on the package. The fertilizer to be used must have a high potassium content. As for the soil to be supplied to the plant, it is important that it is light and well draining. Usually we recommend the use of a specific soil for flowering plants. It is essential that the substrate is well draining in order to avoid the appearance of water stagnations that would cause root rot and the consequent death of the plant. In this regard it is possible to add expanded clay to the soil. During the preparation of the substrate it is also advisable to add a slow release granular fertilizer to the bottom.
Mandevilla laxa: Diseases
The Mandevilla Laxa can be attacked by different types of insects and mites. Among these, it is possible that the plant is infested with cochineal. This parasite tends to manifest itself in the form of white and powdery spots that appear on the underside of the leaves. If the infestation is not particularly extensive you can proceed using a cotton pad soaked in alcohol to remove the stains. In the event of a stronger attack, it is advisable to proceed with appropriate pesticides. The Mandevilla Laxa can also be affected by aphids, or plant lice. Also in this case, the use of a specific product is the best choice. Other possible plant diseases can result from bad cultivation techniques. If it is over-irrigated, there is the risk of causing water stagnation and the consequent root rot which can also lead to the death of the plant itself.