Yarrow Gilly Flower as the 49ers named this sweet little annual California wildflower. Frilly green foliage gives rise to 10″ stems supporting violet to sky blue flowers. Blooms May-July in our climate. Very easy to naturalize in open disturbed sites. A great reblooming pollinator wild flower. Makes sweet little bouquets as well. Full sun and loose un-compacted soil- turn the soil to incorporate oxygen before planting. Light summer water keeps things going. Or it will finish with drought setting seed for the next years performance. A reliable and useful re-seeding plant for open, rocky places, where no sane plant can find purchase. Often comes up in the ‘Alba’ white form which is fantastic and makes the blue form seem more intense. Great little cut flower. Very light H20 extends the show.