Oyat (Ammophila Arenaria) Or Quackgrass

Oyat (Ammophila arenaria) or quackgrass

The oyat (Ammophila arenaria) is really the plant or grass of the dunes and seaside beaches of the Mediterranean or Atlantic littoral. Its particularity is to resist very strongly sea salt which does not burn it. Numerous names are given to him such as reed of sand, rush of the dunes, ammophile or élyme or psamma of the sands or even couchwort.

Its important presence on sandy coasts - and not on rocky shores - is of considerable use since the plant helps to fix the dunes thanks to its long rhizomatous roots that sink into the sand. As a result, the vegetation just behind the dunes is protected from the winds and can develop, as can the ecosystems that depend on them.

You will easily recognize it in the dunes with its long, narrow, glaucous green leaves forming tufts starting from the ground. Be careful, the edge of the leaves can be sharp. The curvature of the leaves and the folds they contain offer the plant an ingenious irrigation system since the humidity of the dew, in particular, slides along the leaves to reach the base of the plant and feed the roots with water.

The flowers are tassel spikelets.

  • Family: Poaceae
  • Type: perennial
  • Origin: Europe
  • Color: yellow spikelets
  • Sowing: no
  • Cutting: no
  • Plantation: no
  • Flowering: May-June
  • Height: up to 1.2 m

Ideal soil and exposure for the oyat

The oyat grows in the coastal sand, in full sun, supporting the spray.

Date of sowing, cutting and planting of the oyat

The oyat is not a grass which is sown or planted since it reproduces itself sufficiently by rhizomes tracing and stolons.

Oyat (Ammophila arenaria) or quackgrass

Board of maintenance and culture of the oyat

The district develops without any specific maintenance by the sea...

Diseases, pests and parasites of the oyat

The roots of the oyat can be invaded by parasites forming nematodes, when the sand of the dunes is stabilized, and this ends up killing the oyat.

Location and favorable association of the oyat

It is a plant that grows and grows only in the sand of the seaside.

No oyat is planted in the garden since the plant needs the wind to stir the sand. In addition, the species can become invasive because of its root system.

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