Ranunculus - diseases and pests

Ranunculus - diseases and pests

Disease infestation - rarely the case

As a rule, the ranunculus bush is not affected by diseases. It is considered robust and less prone to disease. Often, certain symptoms on the plant are not due to pathogens and their damage, but to care errors. Therefore: take care of your ranunculus properly!

also read

  • Ranunculus - all about its flowering period
  • Ranunculus - where does it bloom most profusely?
  • Ranunculus: Don't be stingy with care!

Fire blight - recognize and treat

A ranunculus that is in the wrong location and has been poorly cared for becomes susceptible to disease. Sometimes a fire blight infestation can occur. You can recognize an infestation by:

  • Leaves turn yellow to brown and dry up
  • Flowers wilt prematurely
  • Shoot tips curve like a hook
  • Ulcers appear on the wood
  • the plant dies within a few weeks

Cut off affected parts of the plant and dispose of them

In the case of fire blight, the plant can only be helped in the early stages of the infestation. Infested shoots should be cut off as soon as possible. The clippings shouldn't be on top of the compost. The pathogens could survive and later spread to other plants. Therefore, dispose of the clippings in the household waste or burn them!

Which pests can occur?

Just like an infestation of diseases, a pest infestation occurs extremely rarely. Ranunculus leaves and shoots seem unattractive to most pests. Only young plants that have just sprout could be eaten by snails from time to time.

Disease and pest prevention

You can prevent this with these measures:

  • Never let the substrate dry out
  • Mulch the root area
  • fertilize moderately with nettle liquid manure
  • Avoid radical cuts
  • thin out regularly
  • remove superfluous runners
  • do not expose to direct midday sun
  • create good drainage in the substrate


Even a bad location - shady, cool and humid or sunny, hot and dry - can have a negative effect on the ranunculus within a very short time. He becomes so weakened that he becomes susceptible to disease.