'Cotton Ball' meadow rue's tuft of white flowers over a dense pillar of finely textured foliage is ideal for adding height to narrow spaces. Its tall, dark stems add contrast against the bright white flowers. This summer blooming perennial will attract bees and butterflies to your landscape or garden bed, but is not attractive to browsing deer or rabbits. With tall stems and long-lasting flowers, this selection is excellent for cutting to add to summer bouquets.