Tag Archives: Biennial

A biennial plant is one which takes two years to complete it’s life cycle. In the first year the plant grows leaves, stems and roots. It then enters a period of dormancy over winter. Usually the stem remains short and leaves stay low to the ground, usually in a rosette. in the second year they will flower.

Biennial lawn weeds

There are far fewer biennial plants than perennials or annuals. As a result there are not many lawns weeds in this group. The most common being ragwort.

For more information about these interesting lawn weeds, take a look at these blog posts about them.

Ragwort (Jacobaea vulgaris)

Ragwort is a reasonably common weed seen on many lawns across Devon. The latin name is Jacobaea vulgaris (syn. Senecio jacobaea). Jacobaea is the family of plants to which it belongs (which is within the tribe Senecioneae) and vulgaris literally means “common”. It is also called stinking willie, ragweed or ragged weed. The latter probably came about due to… Read More »