I planted two dicentra bleeding hearts that I purchased in 1 gal size two years ago. Both are in mostly shady areas. Neither has ever bloomed,not even I flower. Both are very green and healthy looking and roughly 12 inches in size. Why no blooms?
Bleeding Heart Plants Have Never Bloomed
Certified GKH Gardening Expert
Most likely your plant needs some nutrients. You can top dress the soil with some good organic compost.
Also a slow release fertilizer is important in the spring as the leaves start to emerge.
Here is a link with care and growing information.