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Why does not my hibiscus flower?

  • garden hibiscus
  • Roseneibisch

If a hibiscus does not flower, it can have different causes. There are also differences in the individual hibiscus species. Above all, a distinction must be made between indoor and outdoor plants. The claims of the plants are different.

garden hibiscus

A garden hibiscus often does not flower the same, although it depends on the plant. Seedling plants, that is, plants that have been propagated by sowing, flower later than those propagated by cuttings. There can be two to three years difference in it.

  • Seedling plants later bloom as cuttings
  • Often 2 to 3 years difference

In addition, the trees need a suitable location and a good substrate. Only when the plants feel well, they start to bloom. In winter, they must be protected from cold east winds.

  • Sunny and protected
  • Protected from the easterly wind
  • Ideal in front of a bright house wall, south side
  • Permeable soil that can hold water and nutrients
  • Nutrient-containing, slightly moist
  • Mulch soil to prevent dehydration

This also includes nutrients in the soil and as constant as possible a moisture . Dryness and persistence are very unfavorable. They weaken the hibiscus and it is busy regenerating. For the flowering lack the strength. In addition, there may be a lack of nutrients. Often, too much nitrogen is fertilized. This is important for growth, but phosphorus is crucial for flowering.

  • Water regularly
  • Do not let the soil dry out
  • For mulching
  • No permanent wet
  • Fertilize immediately after cutting in spring
  • Horn shavings and compost are well suited
  • Fertilize phosphorus regularly (for flowering)
  • Do not fertilize at the end of July so that shoots can ripen

If the hibiscus has been damaged in winter, it takes some time to regenerate. So the power to flower formation may be missing. In order to prevent, can be fertilized in September with Patentkali. It helps the plants to prepare for the winter. The shoots mature, he can recharge his batteries. In addition, it can make sense in cold areas to cover the root ball, with leaves, a thick mulch layer and with brushwood. In high trunks, which have arisen through refinement, the processing point should be protected at the top of the trunk end. It is exposed to wind and weather, which is not cheap.

  • Patentkali in September (extra fertilization)
  • Cover the root ball
  • Pack in high-strain processing station


The rose marshmallow needs a rest period in winter to recover and prepare for the new flowering season. Here, temperatures around 15 ° C are important and high humidity. During this time, only a little is poured and not fertilized. In addition, the plants bloom better if they are regularly cut back, because only then branch the branches.

  • Wintering quarters bright and around 15 ° C
  • Water a little, but do not let the plant bales dry out
  • Do not fertilize
  • High humidity - spray regularly
  • Check for pest infestation

If nutrients are missing, no flowers are formed. Potted plants can not provide themselves, such as garden plants that partially succeed. They depend on fertilizer. If the nutrients are consumed in the vessel, new ones must be produced. Important is the correct composition of the fertilizer. Nitrogen causes the growth of the hibiscus, phosphorus for flower formation. Potassium is also more important than nitrogen.

  • Regular fertilization important
  • Fertilize immediately after pruning
  • Otherwise fertilize with phosphor
  • Not too much nitrogen, otherwise too much length growth, the plant gets out of shape

Often lack of light ensures that the hibiscus does not bloom. The plants need as much light as they possibly can. In summer, they enjoy sunshine, although they have to get used to it in the field. Even in winter, a lot of light is important. If necessary, a plant lamp can be helpful.

  • Put in the sun in the summer
  • Slowly get used to direct sunshine
  • Also in winter a lot of light
  • If necessary, use plant lamp with timer

The rosemary should be cut regularly. That's good for a compact shape and for blooms. These appear only at the drive ends. Without a cut, there are hardly any branches and thus little drivers. This way, flowers can hardly form. En cut is very helpful. It is cut either before budding after the winter break or after flowering. Since some of the plants are blooming almost all year round, you have to cut away some buds. If the hibiscus does not bloom at all, a strong pruning can stimulate the sprouting and then flower buds usually form soon.

  • Regular cut
  • After flowering or before budding
  • Very cut compatible
  • Explode from old wood again
  • Cut promotes branching and flowering

If a Zimmerhibiscus does not want to bloom, also pests can be the cause. Especially in too warm hibernation, the plants are at risk. First and foremost, spider mites occur. They are difficult to discover and even harder to combat. Important is a regular, best weekly pest control. If the shoot tips are sprayed with a fine mist of water, the smallest droplets that stick to nets will be found. These webs are a clear sign of the spider mites. Chemistry usually has to be used to combat these pests. Unfortunately, they quickly develop resistance, so that some funds do not help at all. Preventive helps to keep the humidity always nice and high.

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