Trollius can be shipped either in the spring or in late summer/early fall.   

Like the bloodroots, the spring season for dispatch is short and weather dependent. Mailing of freshly dug globeflower plants starts in April and in some years will last until the first weeks of May. Once this early shipping season ends, anyone ordering Trollius will have to wait until mid-August before the bare root divisions can be successfully shipped again. Colchicums and/or Sanguinaria can be sent out as well during this second and much longer shipping window.