Timothy is generating good early and mid-season growth on a Welsh upland farm and has the potential to fill gaps when perennial ryegrass growth falters.

At 430 metres at its highest point, the land farmed by John and Sarah Yeomans and their family can be a challenging environment for growing grass on the shoulders of the season but by incorporating timothy into seed mixes leys are yielding an average of 10tDM/ha.

Timothy can grow when the soil temperature is at 0C and the air temperature is +5C.

It is the main grass species grown in Finland where it is normal to have ice and snow in April, just weeks ahead of first cut in June.

After visiting Finland on a Farming Connect management exchange programme, Mr Yeomans has been trialling its use on wet, deep peat soil in his beef and sheep system at Llwyn y Brain, Adfa, near Newtown, where he and his wife farm with their sons, Tom, Jack and Joe, and their partners, Grace and Mikaela.

That trial, part of three-year European Innovation Partnership (EIP) Wales study with input from Finnish grassland specialists Anu Ellä and Jarkko, has now concluded.

The results have convinced Mr Yeomans that timothy will have a place in his system going forward.

Leys that established well in 2019 averaged more than 12tDM/ha in 2021, providing valuable feed for 58 ewes and lambs per hectare for nearly three months and extending late season growth considerably.

“It lifted productivity massively from May to late June,’’ Mr Yeomans reports.

In 2022 the percentage of timothy in one of the plots increased to 25% – up from around 10% in 2020.

Independent grassland specialist Chris Duller, who has been providing technical input into the EIP project together with Dr Iwan Owen, of Ibers, said similar small increases in timothy were observed in some of the other original plots too, those which had experienced challenging establishment conditions due to exceptionally high levels of rainfall.

Only 40kgN/ha had been applied up until the end of June – it is likely to total 80kg in 2022 compared to 120kgN/ha in 2021 because difficult ground conditions had prevented a spring application.

During a recent joint EIP Wales and Farming Connect open day at Llwyn y Brain, Mr Duller said a key finding from the trial was that timothy had grown as well as ryegrass in all but one of the plots.

There was no difference in the protein and energy values of timothy and ryegrass, despite an expectation that the quality of ryegrass would be higher.

But the trial had suggested that the highest percentage of timothy that could be achieved in any of the plots was 25%, whatever the sowing rate of the seed.

“Going forward it suggests that if we want to increase the diversity of grass then we need to think about increasing the percentage of multi species leys which include other grass varieties too,’’ said Mr Duller.

Understanding the longevity of timothy compared to ryegrass – a key benefit of this species – can only be known further down the line, he said.

But the three-year timescale of the EIP project is one that Mr Yeomans is grateful for.

“You have to trial something for three years to know whether or not it will work because in a shorter timeframe results can be skewed by an exceptionally good year or exceptionally bad one.’’