The answer is in your yard. Watch closely for the smallest hints, record what you find and advance the cause of science.

They are magical trees to have in the garden, growing to a nice, manageable size. The acer can grow quickly from one year to the next, so it will need an annual tidy-up to keep looking neat and tidy.

The King plants an Acer Rubrum ‘October Glory’ in the grounds of Buckingham Palace (Aaron Chown/PA) The King has planted a red maple tree at Buckingham Palace to celebrate the success of a ...