Weeds - Grass Weeds Information and Photo Gallery

Annual meadow-grass

Appearance

Annual meadow-grass (Poa annua) is a small annual grass, which grows with its shoots either upright or growing outwards at an angle. It can grow to a height of around 3 to 30 cm. Leaves are generally curved and often crinkled. Individual blades are abruptly pointed, 1 to 14cm long, folded and 1-5mm wide. The flowering stalks spread wide and are triangular in silhouette growing to a length of up to 8 cm. The flowers are green and sometimes tinged with purple.

Occurrence and spread

Annual meadow-grass is common throughout the British Isles on cultivated land and can tolerate most situations - wet or dry, shade or open.

It is a very common weed, often a serious pest and can occur as a continuous green sward. It grows in most situations throughout the UK. The seeds germinate all year round and the plant can flower and seed at any time although this is predominately between April and September. The plants can produce between 100 to 800 seeds per season. It is also frost hardy.

Control and management

This weed can be controlled by a wide range of herbicides. For example a formulation containing isoproturon and diflufenican, e.g. panther, will provide meadow-grass control in winter wheat, winter barley and as a pre-crop emergence treatment in winter rye and triticale. Seek advicefrom your BASIS qualified adviser.

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