Burnt Copper Round Bowl Metal Planters Set of 4 Globedecor Mother of Thousands It's time to collect seeds from Pacific Bleeding Heart (Dicentra formosa). Wait until most of the seeds have turned blackthat's when they're mature. I like to sow them right away into moist Creative Container Gardens with Succulents & Cacti Small Round Shallow Succulent or Bonsai Planter, 6 inch Pot, Multiple 4 of the most helpful tools to have in your seed starting toolbelt