time of year when daffodils bloom in Southern England. After the accident, some police officers who attended the scene planted daffodil bulbs in the bank on the side of the road next to the accident. For many years in the middle of March, the site was marked by a patch of yellow. See also 1993 M40 minibus crash 1997 M42 motorway crash 2011 M5 motorway crash 2017 M1 motorway crash References External links Road incidents in England M4 Motorway Crash, 1991 1991 disasters in the United Kingdom M4 Motorway Crash, 1991 1990s in Berkshire Road accidents involving fog Disasters in Berkshire M4 motorway March 1991 events in the United Kingdom Lambourn