Armeria maritima forms clumps of strap-like leaves, with the white pompom flowers on tall stems continuing to produce from spring to summer, providing the dead flower heads are removed.
These are natives of seaside cliffs so are both wind and salt tolerant but do need full sun.
They look very pretty when mixed with one of the pink varieties.
The common name, Thrift, refers to their ability to thrive under any circumstance, so they are a very handy plants to be able to fill a wide variety of garden locations and environments - especially the more demanding coastal areas.
Excellent for cottage gardens and they also make good cut blooms too.