Hibiscus: All tips for the perfect bloom

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With their flowers, hibiscus give every garden an exotic flair. Here you can find out everything about planting, cutting and caring for hibiscus.

Red hibiscus in the garden
The hibiscus is a real exotic and eye-catcher in the garden [Photo: istanbulphotos/ Shutterstock.com]

With its flowers in all colors of the rainbow, the hibiscus (Hibiscus) a real eye-catcher in every garden or room. Although it is a real exotic ornamental plant, the hibiscus has long since found its way into our garden landscape. In order to be able to grow the special shrub in your own home, however, expert knowledge is required. In our article we tell you everything about the origin, the right planting, care and overwintering of the hibiscus.

contents

  • Hibiscus: origin and properties
  • Buying hibiscus: you need to pay attention to this
  • Hibiscus species and varieties
    • Garden hibiscus (Hibiscus syriacus)
    • Rose Hibiscus (Hibiscus rosa-sinensis)
  • Planting hibiscus: instructions and choice of location
    • Plant hibiscus in a pot
  • multiply hibiscus
  • Caring for hibiscus: tips for a beautiful bloom
    • watering hibiscus
    • cutting hibiscus
    • Fertilize hibiscus
    • Overwinter Hibiscus
  • Hibiscus: diseases and pests
    • Aphids on hibiscus
    • Spider mites on hibiscus
    • Whiteflies on hibiscus
  • Is hibiscus poisonous?

The hibiscus is a plant of the mallow family (Malvaceae) and is popular with us both as a houseplant and in the garden. In German, the hibiscus is also called marshmallow.
Depending on the species, the hibiscus can grow as an annual or perennial, herbaceous plant, subshrub or shrub. The diversity of the plant ranges from 20 centimeter potted plants to two meter high bushes in the garden. The flowers of the hibiscus are also varied: they can have a wide variety of shapes and sizes Colors have and definitely bring color and a touch of the exotic to your garden or your Room.

purple hibiscus
Hibiscus bushes can grow up to two meters tall [Photo: Ellita/ Shutterstock.com]

Hibiscus: origin and properties

The hibiscus originally comes from China. All types and varieties that are still known and common today come to us from the Middle Kingdom and its neighboring countries. Meanwhile, the hibiscus is known worldwide and very popular. In its homeland in Asia, however, the hibiscus is still very important to this day. In South Korea and Malaysia it is even revered as the national flower. The "everlasting flower", as the hibiscus is called there, symbolizes determination and perseverance. In China, the hibiscus represents wealth, splendor and glory. And many will have recognized the hibiscus blossom on the typical Hawaiian shirt. Hibiscus flowers are very impressive indeed. They can be up to 30 centimeters in diameter and shine in all the colors of the rainbow. Hibiscus flowers are often filled, half-filled or have several colors at the same time. Even if hibiscus is only used as an ornamental plant in our country, it is said to have healing and health-promoting effects. That is why hibiscus can also be found as an ingredient in countless cosmetics.

hibiscus flower
It can also often be seen on Hawaiian shirts: the hibiscus blossom

Buying hibiscus: you need to pay attention to this

When buying hibiscus, you should pay attention to the following three things:

  • size
  • variety
  • Bless you

Especially if you want to keep your hibiscus as a houseplant, the size is crucial. After all, a window sill does not offer an infinite amount of space. You should also pay attention to the type and variety of hibiscus when buying. Because the different hibiscus species also have different requirements and have to be cultivated and cared for differently. In addition, each variety flowers differently. Finally, you should check the health of the plant and make sure that the hibiscus appears vital and healthy. The plant should also be free of diseases or pests.

hibiscus varieties
Variety selection is key when purchasing hibiscus [Photo: Victoria Kurylo/ Shutterstock.com]

Hibiscus species and varieties

There are over 200 hibiscus species worldwide, all of which come from Asia. The hibiscus varieties often differ in their flower color, their growth height and their winter hardiness. If you want to enjoy the opulent hibiscus blossoms in your garden, you have to look at the garden hibiscus (Hibiscus syriacus), also called garden marshmallow. The rose marshmallow (Hibiscus rosa-sinensis) is unbeatable as a pot and house plant. Here are the most important things about the two best-known hibiscus species:

Garden Hibiscus (Hibiscus syriacus)

Very robust hibiscus species; can overwinter outdoors; can be cut to the "little trunk"; rather woody shoot development; rather low variety.

Some particularly beautiful varieties of garden hibiscus:

  • 'Bluebird': Blue, large flowers; blooms early in the year; hardy
  • 'Joan of Arc': Grows up to two meters high; white, semi-double flowers; hardy
  • 'white chiffon': White, semi-double flowers; flowering from summer to autumn; frost resistant

rose hibiscus (Hibiscus rosa-sinensis)

heat-loving hibiscus species; not suitable for outdoor cultivation all year round; large variety of varieties and colors; is ideal as a pot or houseplant.

Some particularly beautiful varieties of rose hibiscus:

  • 'standing ovation': Flowers orange-red and yellow; Flowering period from early spring to late summer
  • 'Jolanda Gommer': Flower color varies between violet, orange and red
  • 'Fruit Tango': flowering period between April and November; pink filled with yellow edge
Rose hibiscus in pot
The rose hibiscus is particularly suitable as a houseplant [Photo: Luisa Fumi/ Shutterstock.com]

More hibiscus species and a detailed list of the different ones Hibiscus Varieties you can read here.

Planting hibiscus: instructions and choice of location

The hibiscus is a sophisticated contemporary in the room and garden. Both the quality of the substrate and the sunlight play an important role in hibiscus plants important role: Hibiscus prefers nutrient-rich soil with a balanced ratio of sand and loam. An additional enrichment of the soil with compost promotes flowering in summer. Outdoors, the exotic loves a full sun location. The best time to plant hibiscus is in spring.

Instructions for hibiscus plants in a nutshell:

  • Choose a sunny location
  • Planting hole twice as big as the root ball
  • Mix excavation with compost
  • Pour generously
  • Apply mulch layer

A detailed guide to Planting Hibiscus you'll find here.

Plant hibiscus in a pot

Small varieties of rose hibiscus are suitable for growing in pots. In summer, the indoor hibiscus can also stand in a sunny spot in the garden or on the terrace. However, this frost-sensitive species has to spend the winter indoors or in the conservatory.

Hibiscus plant being repotted
A sufficiently large pot is very important for the hibiscus as a houseplant [Photo: Sheila Fitzgerald/ Shutterstock.com]

Our peat-free variety is ideal for cultivation in pots Plantura organic potting soil. It provides your hibiscus with ideal nutrients and is also harmless to people, animals and nature.

Everything you need to know about planting hibiscus in pots:

  • Sunny, warm location in summer
  • Bright, cooler location in winter
  • Choose a sufficiently large pot
  • Nutrient-rich substrate with a high humus content
  • create a drainage layer
  • Pour liberally

A detailed guide to planting Hibiscus in a pot as well as care tips for keeping buckets can be found here.

multiply hibiscus

If you don't want to buy a hibiscus plant, you can also propagate your hibiscus yourself. This can be done with seeds, sinkers or cuttings. When propagating from seeds, the later plant may not have the same flower color as the mother hibiscus. Propagation of cuttings, on the other hand, requires a great deal of skill and is not always successful.

You can find detailed instructions on how to propagate hibiscus here.

Caring for hibiscus: tips for a beautiful bloom

The hibiscus is a real diva in the garden: everyone is enchanted by its blossom, but it also requires a lot of care. Below we give you an overview of how you can keep your hibiscus healthy and happy with the right care.

cutting hibiscus
Caring for the hibiscus includes regular pruning [Photo: NagyG/ Shutterstock.com]

watering hibiscus

The water needs of the different hibiscus species are very different. The garden hibiscus, for example, likes it a little drier in summer. A constant water supply should still be given - simply reduce watering to once every three days. The rose hibiscus, especially when it is exposed to the dry heating air in winter as a potted plant, wants to be kept moist all the time. However, you should definitely avoid waterlogging.

cutting hibiscus

The best time to prune your hibiscus is right in the beginning of spring, when the growing season begins. The earlier you cut back the leafless hibiscus, the longer it has to recover from the cut. When cutting the hibiscus, you should not be too squeamish. Already when planting you can remove weak and injured branches. With young plants it is not a problem if only two to three shoots remain at the end. This is shortened again by at least half, so that branching at the base of the shoot is promoted. The hibiscus will recover in the growth phase and over time develop densely branched branches. This radical cut can be repeated next spring with a clear conscience. In addition to this, there are other cuts, such as the rejuvenation cut and the maintenance cut.

More information about the different Pruning Methods of Hibiscus can be found in our special article.

Fertilize hibiscus

Regular fertilization can help ensure a more lush bud site with multiple flowers. If you swear by mineral fertilization of your hibiscus, you should provide it with a complete fertilizer every two to three weeks from April to September. However, fertilizing with an organic fertilizer is more sustainable and environmentally friendly. In early spring, for example, you can use mature compost in the garden and a slow-release fertilizer underneath, like ours Plantura organic flower fertilizer mix in Regular fertilization from spring to autumn is also essential for potted plants. It is also recommended here Plantura organic flower fertilizer, which provides the hibiscus with the right nutrients for a beautiful bloom over the long term.

Plantura organic flower fertilizer
A long-term fertiliser, such as the Plantura organic flower fertiliser, provides the hibiscus with the optimum nutrients

Even more things worth knowing about the right one Fertilization of the hibiscus you can read here.

Overwinter Hibiscus

The right place to overwinter hibiscus depends entirely on the species. After the first year or two, the garden hibiscus should be so hardy that it can overwinter outside. Before that, it is advisable to keep it in a large container so that it can be placed indoors or in a greenhouse over the winter months. The rose hibiscus should best be kept at room temperature all year round. You can only put the rose hibiscus outdoors in the warm summer months of June to August, when the night temperatures are high enough.

More information about Overwintering Hibiscus you'll find here.

Care of hibiscus in brief:

  • Water the hibiscus as needed
  • Avoid waterlogging
  • Once organic long-term fertilizer in the spring
  • Garden hibiscus can overwinter outside
  • Rose hibiscus needs to winter in a warm place
  • When planting directly in the bed: Thick layer of bark mulch for heat insulation

Extensive tips and tricks for Care of hibiscus can be found in our special article.

Hibiscus: diseases and pests

Unfortunately, unpleasant pests also enjoy the beautiful plants. We have summarized for you here which diseases and pests are troubling the hibiscus.

Aphids on hibiscus
Unfortunately, aphids don't stop at hibiscus either [Photo: Tunatura/ Shutterstock.com]

Aphids on hibiscus

The biggest threat to the hibiscus are aphids. The approximately two millimeter large, plant sap-sucking pests can cause great damage, especially to the still young shoots. Infestation by aphids can lead to the death or withering of leaves, shoots and flowers on the hibiscus. The aphids can be controlled by rinsing, collecting or using biological pesticides.

spinning myellows on the hibiscus

spider mites are tiny arachnids that can be identified by their distinctive orange coloring. They damage the hibiscus by attaching themselves to the underside of the leaves, leaving webs there and thus killing the leaves. You can fight the spider mites with rinsing, predatory mites or biological pesticides. Above all, you should avoid dry heating air to prevent an infestation with spider mites.

Whiteflies on hibiscus

the white fly also causes damage to the leaves. The affected areas can be recognized by a slightly yellowish discoloration. with yellow boards, to which the animals stick, action can be taken against the infestation.

Is hibiscus poisonous?

First of all, the most important thing: hibiscus is not poisonous. Although there are some wild species that contain toxic substances, all domesticated hibiscus species that we use are non-toxic. From the flowers of a hibiscus species, the Hibiscus sabdariffa, even tea is made. This dark red hibiscus flower tea is particularly popular in Egypt and Mexico.

Hibiscus tea
Even tea is made from the flowers of a hibiscus species [Photo: Africa Studio/ Shutterstock.com]

In this article we debunk the myth of poisonous hibiscus to the bottom.

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