The winter hardiness of timothy-grass is a key factor in its longevity, determining the ability of plants to maintain productivity in the sward over several years.
In the reference
22
varieties
crop Timothy grass,
where this is mentioned in the description.
In state variety testing, winter hardiness is assessed on a 5-point scale based on visual observations of the plants' condition after wintering and analysis of monolith regrowth. Scores in the range of 4.6–5 points are considered high winter hardiness.
Timothy-grass possesses high winter hardiness, comparable to winter rye. To maintain this biological trait, it is critical to observe a mowing height of at least 4 cm, which ensures the preservation of the lower layer of vegetative shoots for successful wintering and subsequent regrowth.
General information about the subject — on the page
Winter hardiness.
Varieties of Timothy grass mentioned in the description
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.