‘Shimmer' starts the season with a burst of growth, and its slender stems are covered with green leaves that turn to pewter gray (very closely resembling a long leaved Dianthus). After a while, the stems will get tall enough to lay over, exposing the crown of the plant.
With decent moisture amounts, the plant continues to grow, and new stems fill in the bare area above the crown. These new stems will produce another round of flowering, especially if the plants experience a good rain. ‘Shimmer' is very responsive to rain, especially thunderstorms with the waters rich in dissolved nitrogen and oxygen, resulting in a generous display of its cheerful flowers a week or so after the storm.
A tremendous lightning-filled thunderstorm soaked my home garden last evening, dumping just a bit more than 2" of rain. This storm has broken the heat and re-hydrated our parched soils. Now I wait. I'm excited with anticipation of my ‘Shimmer' plants blasting back into flower.