Taiwan

Help! My dicentra formosa, 'Bleeding Hearts Vine' foliage is yellowing and it's only the beginning of April. I'm new to gardening. I planted my dicentra in a shady location and I take care to not over water. I always check the soil before watering any of my plants. My dicentra formosa looks horrible. The foliage is yellowing and I didn't get hardly any blooms out of it. Isn't it too early in the season for my dicentra to be yellowing and dying back? It's only April. Any suggestions for how I can get this plant back on the mend? Or should I let nature take it's course, allow it to die back and hope it comes back stronger next season? I would really appreciate any advice. I don't know what the heck I'm doing.