Thrift (Armeria maritima)
The complex flower heads are very popular with insects and the 6-spot Burnett moth will be just one of many insects to feast on its nectar.
In some areas the Thrift forms large carpets of spongy green foliage and this is a great place for insects to build their nests.
I am old enough to remember the old 'thrupenny-bit'; a five sided coin of the pre-decimalisation days which featured thrift on the back. I have no idea where this plant gets its thrifty name or why it was on that coin. If anyone does know I would be really pleased to find out.