Sea Holly, Eryngium maritimum.

Bluebell Wood, Hyacinthoides non-scripta.

Bluebell, English bluebell, Hyacinthoides non-scripta.

Bluebell Wood, Hyacinthoides non-scripta.

Squill, Puschkinia scilloides.

Isotoma, Solenopsis axillaris.

Thrift, Sea pink, Armeria maritima.

Hibiscus, Rose mallow 'Blue Bird', Hibiscus syriacus 'Oiseau Bleu' close up showing stamen.

Cornflower, Centaurea cyanus 'Double blue'.

Hawthorn, Crataegus laevigata, Three berries or 'haws' on a twig with icicles hanging from each, against a soft focus blue green background.

Yarrow, Achillea, dead flowerrheads covered in snow against a dappled blue background.

Holly, Ilex aquifolium, leaves with melting snow against a pale blue background.