Sow Westerwolds to provide a bulky cut this year and help mitigate winter feed shortages. The recommended sowing rate is 13 – 16 kg / acre. It can be sown now and into very early august. The disadvantage is that it is not the most winter hardly grass, so it can struggle in a harsh winter. It is also only a one-year crop.
An alternative would be to sow and Italian catch crop which may not yield as much as Westerwolds this autumn but would be better through the winter, and would be suitable for up to two years. You would expect to see better yields in the spring from Italian catch crop due to its better overwintering capability.