This is a reliable and long and late flowering perennial that does best dry conditions. It produces a neat clump of flowers (as good as most annuals) and if you keep removing the faded flowers, it keeps producing more until well into autumn. A great prairie border plant.I cut this plant back to the ground in spring and use slug deterrents, including garlic spray. I give this plant a multi-purpose feed once new growth has started in spring to get it off to a good new start.
You can propagate by division in early spring. There's a careful way of doing this but I just shove a spade through the middle of it, dig half out, backfill the hole with soil and replant the other half. Brutal yes, but some plants are tough enough to handle it.
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