Caring for Dipladenia — tips for permanent bloomers for the balcony and terrace

Useful information Location Planting Care Watering Fertilizing Pruning Overwintering Species Pests & Diseases FAQ

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Interesting facts about dipladenia

Botanical name: Dipladenia sanderi, Mandevilla sanderi
Other names: Dipladenia, Dipladenia plant, Mandevilla, Chilean jasmine, Sundaville
Use: Balcony plant, container plant, climbing plant, traffic light plant, cemetery plant
Origin: South America
Flower colours: white, yellow, red, pink
Flowering period: April to October
Particularities:Dipladenia are colour-intensive continuous bloomers for many months. The popular plant adorns the balcony and garden with glossy, dark green leaves and funnel-shaped flowers. With the right care, you will have a lot of fun with the richly flowering Dipladenia. As a tropical plant, the plant cannot stay in the garden in cold temperatures and needs winter protection. The Mandevilla is easy to cut and requires little maintenance. Read the care tips below. Whether garden or balcony — Dipladenia bring color.

Dipladenia are native to South America with more than 100 species. The floriferous plants prefer full sun and vary in growth depending on the variety. A member of the dogbane family, Dipladenia is poisonous in all parts of the plant. The graceful flowers of the species, also known as Mandeville, are funnel-shaped. The herbaceous and woody plants are perennial with appropriate overwintering, but must not experience frost. It is easier to buy the Dipladenia every year. Tips for cutting and wintering can be found below. With a tireless abundance of flowers from May to October, the climbing plant has quickly become the star in the garden, on the balcony and the terrace. Next to the German nameMandevilla has adopted the botanical term Dipladenia or the protected variety Sundaville®. Discover the variety in our online plant shop.

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In which location do dipladenia feel most comfortable on the balcony and in the garden?

Dipladenia prefer a sunny spot in the garden or on the balcony from May to October. As a plant of the subtropics and tropics, the flowering Dipladenia needs above all a warm place outdoors. Full sun can also be a good location, because the more light and warmth the climbing plant receives, the more profusely flowering it is. If the plant is too dark, it can develop yellow leaves and the abundance of flowers is reduced. The funnel-shaped flowers and the shiny, dark green leaves fit picturesquely into any garden or balcony. But the plant is also convincing in mixed plantings or in a single position. Depending on the variety, it is suitable for use as a climbing, balcony box, solitary or traffic light plant. Some species form longer shoots and tendrils luxuriantly, others are compact and can be planted as balcony plants in boxes or beds or in hanging baskets. In winter, the Mediterranean plant cannot stay in the garden, but must be overwintered frost-free. Learn more about winter protection in the guide below.

What is the best way to plant dipladenia?

Repotting immediately after purchase is ideal, because the Mediterranean plant has only little soil left in the culture pot with its strong roots. By transplanting, you give the flowering plant the best start and the roots the best conditions. A larger pot and good potting soil are ideal, avoiding yellow leaves and stunted growth. Solitary plants, hanging baskets and pyramids also develop better if they are placed in new potting soil. First place the whole plant with the pot in a bucket of water so that the root ball is completely soaked and the plant can be potted out more easilywill. Structurally stable potting soil and expanded clay as drainage are important for repotting, because waterlogging is not tolerated. When planting in the bed or for planting graves, the soil is loosened well and prepared with potting soil. It is also important here that there is no stagnant moisture. Repotting in spring is ideal for overwintered plants. It is easier to buy a new Dipladenia every year.

How do I properly care for my Dipladenia?

In addition to even watering and fertilizing, the flowering beauties require little care throughout the summer. The flowers of the Dipladenia are shed by themselves after they have faded and there is no need to clean them out. The creepers need a stick, a trellis or a cord to help them climb, otherwise the shoots will hang down. New flowers are formed continuously in the warm location. A cut is not necessary, long shoots can be guided upwards on a stick or you can cut them off for aesthetic reasons. Some of the lower leaves are no longer attractive, and these can also be removed during maintenance. With hanging basket plants, the new shoots can be left on the plant as a flowing form and it isno special care required. If the summer bloomers are overwintered, it is important to protect the plants from the first frost. Before putting them into winter quarters, cut back the longest shoots and place the plants in a bright place.

Our gardening tip: The care required for the summer flower is very low. It is a pleasure to buy or give away a Dipladeia. The flowers fall off and new ones are formed. Only the optimal location on the balcony is important for Mandevilla with many flowers. Dipladenia like a lot of sun.

How do I water dipladenia correctly?

Immediately after planting, the summer plant is thoroughly watered. A constant water supply is important for lush flowers and good growth. How often you have to water depends largely on the size, the location, the solar radiation and the volume of the earth. It is therefore difficult to make a general watering recommendation. In the summer months it may be necessary to water every other day, but no excess water should remain in the saucer. Cover pots without water drainage are unsuitable because waterlogging causes root damage. In winter, watering must continue, but at long intervals.

Our gardening tip: In principle, Dipladenia can also cope well with less watering. The roots store a lot of water and so a weekend without watering is possible. However, it is important that the watering is adapted to the weather.

How do I fertilize my dipladenia correctly?

Use a long-term balcony flower fertilizer directly when planting the free-flowering species. This gives the flowering plants a good start and they are well supplied with the slow-acting depot fertilizer for the first few weeks on the balcony. 4 to 6 weeks after planting, it is advisable to start with liquid flower fertilizer with guano. This special fertilizer provides the Dipladenia with all the important nutrients as well as vitalizing humic substances, the latter promoting vitality and flowering. Dose the fertilizer according to the instructions on the package and supply your balcony plants continuously until late summer. From September you can minimize the nutrient supply and completely stop it in the winter quarters.

Our gardening tip: Long-term fertilizer sticks for balcony plants are a practical way of optimally supplying the plants with fertilizer without adding liquid fertilizer on a weekly basis. It is also a practical solution for individual plants. Dipladenia only bloom sparsely in the absence of fertilizer.

How do I properly prune my Dipladenia plants?

A cut is not absolutely necessary with Dipladenia. The blooming mandevilla grows luxuriantly and branches out without maintenance pruning. In summer, however, you can cut back long shoots on the Mandevilla for aesthetic reasons. It is important that you wear gloves when cutting, as the milky sap can cause skin irritation. Pruning is recommended, especially after hibernation. This tip will give you compact plants next year.

Our gardening tip: Note that Mandevilla flowers on the young shoots. Therefore, a stronger pruning in summer is disadvantageous for the flowering splendor. Only when wintering can the plant be shortened more. Furthermore, a pruning in early spring promotes budding.

How do I overwinter my dipladenia correctly?

If you want to overwinter the flowering wonders, the Dipladenia must be brought to the winter quarters in good time before the first frost. The optimal place to hibernate is bright and the temperatures are between 8 and 12 °C, but it must not be too warm. As an evergreen plant, Mandevilla sanderi needs sufficient light even in winter. There does not have to be direct sun, but the location must not be dark. Cutting before wintering is possible, you should wear gloves for this, since the escaping milky sap can lead to skin irritation.

During the winter, the Dipladenia does not need any fertilization, it is watered sparingly. The soil is allowed to dry out between waterings, but the root ball should never dry out completely. High humidity, which can be achieved by regularly spraying the leaves, is beneficial for plant health. Repotting in normal potting soil in spring is recommended. As a heat-loving plant is a gradual acclimatizationto outdoor conditions after wintering. The tropical plant should not be in direct sunlight for the first few days. From the end of April to mid-May, the plant can be outdoors in sheltered locations, but temperatures of at least 15 to 18 degrees Celsius should prevail. With us you will find the right planters outside.

Our gardening tip: A warm hibernation for Dipladenia plants often leads to flowering laziness in the next season. It is therefore good if you overwinter the Dipladenia according to the instructions above.

What other types of dipladenia are there?

In addition to the free-flowering climbing plant Dipladenia sanderi, there is the Chilean jasmine, botanically known as Mandevilla laxa. This exotic garden plant is hardy in Mediterranean areas. In the mild wine-growing climate, the fragrant climbing plant with white flowers can stand for many years. This requires a permeable soil and sufficient winter protection. The delicate Mandevilla laxa is ideally suited as a container plant for the balcony and terrace. Temperatures down to 0 degrees Celsius are tolerated. This special feature is also ideal for conservatories. There are many different flower colors in the Mandevilla group and the richly flowering beauties bring a special flair to a Mediterranean garden.

What pests and diseases can dipladenia get?

With the right site conditions and care, Dipladenia are floriferous and easy-care plants, but the following pests can still occur:

aphids

Aphid infestation is possible, especially in phases with less light and less growth in the winter quarters. Check regularly and rinse the plants thoroughly with water when they first become infested — this immediate measure usually helps. Natural plant strengtheners help the plant grow stronger tissue that is less likely to be attacked by sucking insects.

Are you looking for more information about pests and diseases or do you have questions about a plant problem? Our plant doctors will be happy to help you – in person and online!

FAQ — Frequently asked questions about Dipladenia

How are Mandevilla species propagated?

The flowering plants are easy to propagate. In early spring or summer, use a sharp knife to cut 8 to 10 cm long top cuttings from older shoots. These cuttings root in pots with growing substrate at temperatures above 22 °C and high humidity. A greenhouse is ideal for this. Cuttings from new shoots are not so good for propagation because they are too soft. With the right knowledge, Dipladenia plants can be easily propagated.

What is Sundaville®?

Sundaville® are new Japanese hybrid varieties of Dipladenia sanderi. They are characterized by their robustness and willingness to flower and their leaves have small leaves. The new breed became known under the term Sundavilla Red, today pink flowers and many others are common. Propagation of the Sundaville varieties is only permitted with the consent of the Japanese company Suntory. Sundavilla® is available in the colors white, yellow, orange, apricot, red and pink. The flower size varies from 70 to 110 mm. Sundaville is cared for in the same way as the common Mandevilla, and frost-free wintering is also possible here.

Are Dipladenia poisonous?

A member of the dogbane family, the plant’s white milky sap is poisonous. It is therefore important to wear gloves when pruning to prevent skin irritation.

Can Mandevilla also be planted in balcony boxes or hanging baskets?

Without climbing aids, the flowering plant can also have a decorative effect with its long shoots hanging or climbing in hanging baskets and balcony boxes.

What Causes Brown Spots on Leaves?

A pest infestation is usually the cause of brown spots on the leaves of the Dipladenia. It can also be a result of too intense sun, or fluctuations in soil moisture.

What happens if the Dipladenia species are too warm in winter?

If the temperatures are too high during the winter, the plant drives soft and long shoots. The plant becomes unstable and not so compact. Therefore, Mandevilla belong to the category of plants that are wintered in light and at temperatures around 10 degrees Celsius.

Why does the Dipladenia only bloom a little?

Often the location and the lack of heat are responsible for low abundance of flowers. Too little fertilization or severe pruning can also result in flowers not appearing.

Can Dipladenia be used for grave planting?

Due to the low maintenance measures and the tolerance to dry phases and intensive sunlight, Dipladenia can be used in the best way for cemetery planting and for bowls.

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