VIEWERS of today's Prime Minister's Questions will notice that some MPs were wearing heads of wheat on their lapels.

Many MPs across the Government and opposition benches were wearing wheat and the reason is due to a campaign to support farmers.

Why are MPs wearing wheat?

Back British Farming Day is being held today (September 11) and is an initiative driven by the National Farmers Union (NFU).

The day looks to highlight the work of British farmers and is now in its ninth year. 

Activity over the day will highlight to government the importance of agriculture to communities and the economy.

Over the years, some of the UK's most senior politicians - including former prime ministers - have donned the wheat to show their support.

What happens on Back British Farming Day? 

According to the NFU's website, there are a number of ways for people to get involved in the day should they choose. 

This includes sharing #BackBritishFarmingDay on social media or creating a video on social media explaining "why you love working in agriculture".

The NFU said it is "an opportunity to celebrate British farming values and highlight the importance of agriculture to our rural communities and wider society".