PROVEN WINNER. Lacy-like, bright sky blue flowers are held on amethyst calyxes. Its calyxes are spaced very close together to give the flowers a very full look. The colorful calyxes make it look like it is still in bloom even when it is past peak. Denim ‘n Lace’ doesn’t get too tall, has stronger stems and a more upright habit than most older varieties.