Kind of blue part two. I love the way various plants spread and self-seed in neglected beds on the allotments. Some are the weeds aka wildflowers that sprout opportunistically, others will have been deliberately cultivated in previous years then run wild finding the conditions to their liking.
 Case in point the feathery foliage and sky blue flowers of Love-in-a mist (Nigella damascena) weave and wander through other blooms in a most enchanting way. The blue form is often referred to as N. damascana 'Miss Jeckyll' named for (or perhaps by) Gertrude Jeckyll.
 Love-in-a-mist is an annual and packets of seed cost buttons but even that minimal expense is unnecessary here.