The Dipladénia (or Mandévilla), honors us with its abundant flowering from March until the end of November, or even longer. But for it to resume service year after year, it is necessary in most of our regions, make it spend the winter in the shelter. Indeed, this tropical plant that we nickname Jasmine from Brazil is far from rustic. There is therefore no question of exposing this chilly at negative temperatures for a long time. Let’s see what are the solutions that can protect a Dipladénia in winter, depending on whether it is grown in the ground or in a pot, and the wintering conditions to be respected.
What to do in winter with a Dipladénia grown in the ground?
It is of course not recommended to uproot this perennial every year on the grounds of protecting it from the cold because it is frost-sensitive. If you have chosen to grow a Dipladénia in the ground and this environment seems to suit it, never mind: but you have to do everything you can to ensure that it does not have to suffer from winter temperatures. which, if we are not careful, can be fatal to him.
Pour protect a Mandévilla (Dipladénia) in the ground in winterit is essential :
- To cover it with winter sail,
- To ensure that the soil is always well drained because if the stump of the plant is found in stagnant water, it risks suffering from the slightest frost.
These precautions must be taken as soon as the drop in temperature is announced. This Jasmine from Brazil can tolerate down to -2°C or -3°C provided that it is during a very short periodthat this does not happen too frequently and that he especially does not have his feet in stagnant water.
Except in the southern regions or on the Atlantic coast where one can without great fear cultivate a Dipladénia in the ground, this is not really recommended in the other regions because a winter is enough to weaken this beautiful tropical if the temperatures are frequently negative.
What are the best wintering conditions for a potted Dipladénia (Mandévilla)?
Dipladénia lends itself perfectly to indoor cultivation. Installed in a pot or tray, it can thus be taken out on sunny days in order to spend a good part of the year outside. Don’t forget that this plant needs sun and plenty of light to bloom profusely!
A few weeks before the temperature drops, the plant must be prepared to enter its rest period. To do this, we must reduce watering et stop applying fertilizer. Then, as soon as the mercury drops below 2°C, it is essential to:
- Treat the plant against any pests,
- Remove all faded flowers and yellow leaves,
- Store the potted Dipladenia in an unheated light shelter, where the ambient temperature is around 10°C to 12°C.
As long as the wintering conditions suit the Dipladénia perfectly, it is quite capable of continue to bloom in winter. If so, that’s a good sign. It is also possible to place the Mandevilla in a pot against a south-facing wall et sheltered from prevailing winds where he could very well spend the off-season.
It is necessary at all costs avoid dark places, too cold, or even premises that are too exposed to the wind and where the plant can suffer the onslaught of rain, as is the case if it is made to spend the winter under a simple awning, for example, in the open air current. In this case, it is better swaddle it in a wintering veil and find a solution so that its substrate is not too soaked by the winter rains. The occasional use of a tarp can be very useful.
However, if one announces a lasting rainy episode or the arrival of extreme coldit is best to resolve to overwinter your potted Dipladénia in a real shelter unheated but with window. Thus, he will not have to suffer from unsuitable weather conditions. It will be high time to bring it back to the air and the sun as soon as spring arrives by placing it outside again…