Gaura usually self-sows. Do you have seedlings coming up? It is not a long-lived perennial but allowing it to drop seed or gathering seed ensures continuation of the flower. In my patch, there are dead parent plants every year and seedlings are moved to fill any gaps. Gaura does not tolerate wet or soggy soil conditions in winter; soil must be fast-draining. If grown in a container, add sand or extra perlite to the growing medium. It is drought tolerant.
Answered on May 16, 2018
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