The D. spectabilis do go summer dormant for me--
I had several Dicentra 'Luxuriant' where I used to live and they did not. In fact, they boomed off/on all summer and got more and more impressive each year.
Bleeding Heart (Dicentra 'Luxuriant')
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Posted by Cyclaminist (Minneapolis, Minnesota - Zone 5a) on Apr 26, 2015 12:17 PM
Dicentra 'Luxuriant' is a hybrid of three species of bleeding-heart: Dicentra eximia (the Appalachian species), Dicentra formosa (the Pacific Coast species), and Dicentra peregrina (the Japanese and Siberian alpine species).
I do not know the extent of summer dormancy in these species, but I imagine that at least one or more of them don't, just based on my experience with the hybrid
