Source: Goldsmith Seeds

Comments:

15-June: yellowing leaves; 30-June: spent blooms detract, dead flowers turn brown, not self-cleaning, needs dead-heading; 15-July: needs dead-heading , flowers look bold, not self-cleaning; 30-Jul: needs dead-heading, some yellow flowers, dead flowers show too much on cluster; 15-Aug: needs dead-heading 30-Aug: needs dead-heading, leaf yellowing at base.