Aster 'Lady in Blue' Blue - Hardy plantA small, autumnal flower. The Michaelmas daisy 'Lady in Blue' (Aster) flowers in early autumn. So you'll be able to hold on to that summer feeling for a while! The many lavender coloured flowers add colour to your garden and attract butterflies and bees. It prefers a spot in a border, or in a pot on the patio. It flowers from August to September. For optimal flowering, place it in partial shade or sun. Tip: Want to enjoy the Michaelmas daisy indoors