Hardy perennial. Candelabra branches of pale pink-white flowers in square heads May-Jul.
Hardy. Tall heads of purple flowers, a ´see-through´ plants for either the back or the front of the border. Loved by bees. Self seeds a bit. AGM
Hardy perennial. Graceful white spires of flowers June to Sept from dark stems. Bronzy-green leaves.
Hardy perennial. White and green variegated leaves with blue flowers in spring. Not hot dry places (seedlings are almost always plain green)