Chaumiere near Rouen, France. Traditionally the thatched roof is topped with a bed of clay where iris are planted. The roots, or rather rhizomes, of the iris help to mesh together the reed ends in the thatch and remove excess moisture from the ridge.
One of Britain's last schools with a thatched roof is spruced up for new term after replacement reeds were put in during holidays
The village school in Barrington, Cambridgeshire teaches 150 children and is one of only three thatched schools in the UK.