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Hibiscus care - Tips for good growth and many flowers

  • Garden hibiscus (Hibiscus syriacus)
    • care instructions

Hibiscus, the easy-care summer shrub, spreads a tropical flair and creates a holiday mood in the garden. One distinguishes the cultivated as pot or container plant type of rose marshmallow ( Hibiscus rosa-sinensis ) from the garden marshmallow ( Hibiscus syriacus ). Both species convince by their great flowers. They have similar claims to care, but the rose marshmallow must be overwintered frost-free.

Garden hibiscus (Hibiscus syriacus)

The garden hibiscus scares many garden owners in the spring, by allowing himself a lot of time with the budding. Usually the plant does not realize until mid-May that there is still life in it. But these hibiscus usually bloom well into autumn. There are different varieties of garden hibiscus. Most striking are probably the blue-flowering specimens, because blue flowers are not so common. One differentiates simply and filled flowering varieties. Almost all of them have a red spot in the middle of the flower, but there are also some monochrome ones. The most widely sold are white flowering varieties, with the flowering ones being slightly more sensitive to rain. The flowers stick together when wet and do not bloom. Otherwise garden hibiscus are very decorative and thankful garden plants.

care instructions

There are several ways you can help a hibiscus to grow well, vigorously, and bloom well. Of course, plant health is enormously important. In order to achieve this, a suitable location and a corresponding substrate are decisive. Decisive but also a regular water intake and sufficient nutrients. A cut promotes branching and more shoots have more room for flowers. Ultimately, wintering is also important. Young plants are still quite sensitive and need protection.


  • sunny, preferably in front of a south wall
  • close to a heat radiating wall
  • necessarily protected from the wind
Hibiscus prefers heat and sun

plant substrate

  • humous
  • normal to nutritious
  • moderately sour, neutral or moderately calcareous
  • favorable clayey sandy soils

planting time

  • best in spring, to ensure growth until frost
  • possible in the autumn, but associated with risks


  • sufficiently large planting hole
  • Loosen soil well in it
  • like the shading of the "foot", so soil around the hibiscus plant
  • alternatively - soil mulching
  • in hedge planting - Planting distance 50 cm
  • transplanting difficult, preferably in spring
  • then water abundantly
Pour hibiscus

to water

  • no waterlogging - pay attention to good water drainage
  • water abundantly in summer
  • Keep the soil slightly damp
  • tolerates moderate dryness
  • Long-lasting dryness often leads to bud shedding
  • Pour plenty of container plants


  • necessarily fertilize after pruning
  • if there is a shortage of nutrients, the shrub reacts with weak sprouting and low flower bud.
  • suitable is compost
  • alternatively horn shavings
  • Autumn fertilization with patent potassium to increase the winter hardiness and strengthen the plants

clean out

  • continuous removal of withered flowers - for neat-looking shrubs
  • also promotes the plant health, because so gray mold is prevented
Remove old flowers


  • Flowers appear on this year's wood. That's why the plants bloom in the first year.
  • A pruning in early spring before budding promotes the summer flowers and at the same time counteracts aging.
  • The shrub branches well and there are more shoots for flowering.
  • Cutting measures are well tolerated. Even older plants can usually be cut back without problems.
  • Shorten 1/3 to maximum 2/3
  • after the cut, the shrubs must be supplied with nutrients
Cut hibiscus in spring


  • Especially young garden hibiscus are sensitive to frost.
  • equally variegated varieties (variegated foliage)
  • Hardiness down to -20 ° C, but rather short-term
  • filled varieties quite sensitive
  • It is therefore recommended to protect the root area with a thick layer of mulch.
  • even a leaf layer can help, so that the soil does not freeze.
  • older specimens are considered hardy.


  • Sowing (also self-sowing)
  • Cuttings in summer (semi-wood) - in a glass of water


  • usually very robust and healthy
  • Root rot - too much wetness
  • Bud shedding - too little water or too little nutrients
  • yellow leaves - too much wetness
Also aphids can cause damage


  • aphids
  • otherwise little
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