Iceland poppies (Papaver nudicaule) flower throughout winter and early spring and can faithfully be found in the potted colour section at garden centres. Or buy packs of seedlings and plant in bulk. Plant them in a sunny spot with well-drained soil and they’ll soon throw up huge hairy buds which open to reveal crinkly petals in pastel or bright colours. The flowers last well in water too. Plunge the stems in boiling water first though to prevent the sap from oozing out.
This gorgeous image comes from Ruffled Blog.