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Our care tips for your Mandevilla

In this article I share my care tips for the Mandevilla with you.
This is my favorite garden plant of course. I hope it becomes your favorite too. These tips will help you with it. The Mandevilla is also sometimes called Dipladenia, so the same tips apply!

Tim cultivation specialist at Mandevillashop.com


Have you ordered our garden plants online? Follow the steps below:

Place the Mandevilla’s outside with daylight, so that the plants can recover from the journey in the box. The sun works as an energy source. The plant needs this energy to recover. Has the plant become dry? Then immediately water a little over the clod. If the temperature is still below 3 degrees Celsius, place the plant temporarily indoors in a sheltered light place.

It is possible that the open flowers have been damaged by transport. The open flowers also need to get used to the direct UV light outside. In our greenhouses, the UV light is filtered through the glass. This ensures that the open flowers usually do not last long. But don't worry, we deliver our plants with many plant buds. This means that new flowers will open almost every day. It is not without reason that we give a flowering guarantee, our Mandevilla’s will always show their flowers.



Give your plants a nice place in the garden, on the terrace or balcony. Preferably put them in a place with full sun, the plant will love it! The Mandevilla will be in full bloom when it gets enough sunlight. A place in half sun will also do the plant good. A place that is too dark will keep the plant from producing flower buds. And you don’t want that ofcourse. View the blog here for all information about the best location.

You can leave the plants in the grow pot, but you will have the most pleasure when the plant is repotted to a larger pot or flowerpot. We have created a planter configurator so that you can see exactly how much soil, plants and possibly hydro granules you need for your own pot.

"The plant grows in balance both above and below the ground. This means that the growth of the plant is limited if the roots cannot continue to grow."

The Mandevilla’s can be repotted at any time in the spring and summer. We offer our own professional Mandevilla potting soil and have added extra long-acting nutrient granules. This means that the Mandevilla never needs to be fertilized, which is nice and easy! When you reorder the potting soil, you also get a growth and flowering guarantee for 3 months. Water immediately after repotting, so that the old and new potting soil will attach well.

"It may be that the plant is a bit stuck in the pot. Hold the plant upside down and squeeze the pot, this will loosen the plant. Never pull on the plant, then the roots can tear apart. You can also cut the pot with a pruner."



Mandevilla’s are plants that can handle drought well. We often hear from our customers: "After our holiday all patio plants were dead, only the Mandevilla’s were still alive." This does not mean that we should neglect the plants completely, but it is okay to forgot to water the plant now and then. The Mandevilla is therefore often called an easy garden plant.

If the plants are left dry for a longer period, the flowers will shrink and the leaves will curl. Our tip: water the plant once a week if it is not raining. When there is a lot of heat, we advise to water every other day. Think of temperatures from 30 degrees Celsius.


It is of course also possible that the Mandevilla’s receive a lot of rainwater. This is actually not really a problem. It is important that there is a hole in the bottom of the pot, so that the excess water can easily flow away. Is your favorite pot one without a hole in the bottem of the pot and do you still want to put a Mandevilla in it? Make sure that there is a good layer of hydro grains in it. This layer can collect a lot of water. This way the potting soil remains dry.

In any case, it is useful to put a small layer of hydro grains (about 20% of the content of the pot) at the bottem of the pot. Hydro granules absorb water when the soil is too wet and release water if the potting soil is too dry. This means that the hydro granules ensure that you have to worry about the plant even less. They partly take care of the water balance. Does the Mandevilla still get yellow leaves? Then check out the blog especially for yellow leaves.


Climbing vines

Some like them and others prefer not to see them: The vines that allow the plant to climb up. I personally like it when the plant is up against a fence, but I prefer to remove the climbing vines when the plants are in a planter with other plants.

It is not spontaneous action whether the Mandevilla is going to climb or not, but we can influence it. It does matter where the plant was bought. Every grower has their own way of growing the Mandevilla. This can affect the growth in your garden. Besides, this also depends on the type. This is especially for the Sundaville brand, purchased on Mandevillashop.com or with the same recognizable label at other retailers.

“The plant gets energy from the sun. In the summer the sun shines so brightly that the plant needs all the energy it gets to keep itself cool. The plant does this by evaporating. If the plant is in a cooler place, the plant has energy left to grow. This creates the typical climbing vines."

In the sun the plant will produce more flowers and in the half sun the plant has energy left to grow the branches as well. If the plant gets more water, it will make longer vines. If you prefer more compact plants without vines, make sure you have a spot full in the sun and water less. Will the climbing vines still come in? Then you can always cut them out.
Want to know more about this? Then read our blog 'grow and twine'.

Watch out for the sticky plant sap that is released from the pruning wound. The white sap is difficult to remove from all surfaces such as skin, pruning shears, tiles and clothing. Cleaning pruning tools is also difficult. Preferably use old pruning shears and gloves that you are not so attached to.

Also view our climbing set to let the Mandevilla grow further.


Remove dead flowers

The overblown flowers do not have to be removed from the plant. The plant will continue to flower without the dead flowers having been removed. It is of course allowed for the best result. Also watch out for the sticky plant juices.


Insects and pests

The Mandevilla’s are not very sensitive to insects and pests. Only aphids may find the plant attractive. The species that can be found on the Mandevilla’s are green, yellow or black lice. The most environmentally friendly option is to cut out and throw away the branches where the aphids can be found. Are there several lice in different places and is cutting them no longer an option, because otherwise the plant will be damaged too much? Then you can use a biological pesticide. The product we offer is based on black soap, also check out our other blog on how to fight lice.

Thrips can also occur on the Mandevilla. The thrips can hardly be seen with the naked eye. However, the damage picture can be seen. The plant will grow together in the growing points, the plant will then produce misshapen leaves.

White fly can occur on the Mandevilla, usually this can be seen when the plant has just been bought. You can find remnants of whitefly eggs on the lower leaves of plants.