Many know it as a pond plant that will soon become rampant. Others know the Cyprus grass as a pot plant or aquarium plant for indoor culture. Those who use it as a pond plant should rather bring it in during the winter…

Cyprus grass is very sensitive to cold

Even low temperatures damage the Cyprus grass

Even temperatures below 10 °C can cause considerable damage to some species of Cyprus grass. The majority of these sauergrass plants come from the tropical and subtropical zones of the world. There they are not exposed to low temperatures. As a result, they could not adapt to temperatures below 10 °C.

Most species do not tolerate frost at all. They come in as a result. So if your Cyprus grass is outside in the garden pond or in a pot on the balcony, you should bring it in in autumn to overwinter it there.

Cyperus longus - a species that is well hardy

But like almost everything in life, there is an exception. This is called Cyperus longus. It is a type of Cyprus grass that is native to this country and is therefore relatively hardy.

In sheltered locations, this Cyprus grass tolerates temperatures down to -17 °C. It can still cope with temperatures down to -12 °C in unprotected locations. This species is characterized by fresh green foliage and brownish flowers. In the pond she feels in good hands.

Wintering indoors - where and how?

Hibernation is obvious and this is to be considered:

  • hibernate indoors
  • bright space is important
  • Temperatures between 15 and 18 °C are ideal (bedrooms, stairwell,…)
  • well suited: tall glasses, vases, water basins
  • Fill the vessel with water (5 to a maximum of 10 cm high water level)

Care during the winter period

Even in winter, the Cyprus grass needs a small portion of care. Before wintering begins, you should trim your Cyprus grass and remove withered parts. You hardly need to fertilize it during the winter or not at all. It is important that the Cyprus grass is regularly sprayed with water.

tips

Since Cyprus grass is usually extremely susceptible to pest infestation when overwintered indoors, you should check it regularly for spider mites, thrips and fungus gnats in winter! Brown leaf tips could be a first warning sign.

Category:

Vegetable garden