Thanks to a generous friend I can offer this most beautiful and a bit rare woodland plant with large white-cream flowers. Not difficult to grow from seeds but of course it needs a few years to get to the flowering stage.
Seedlings from this white flower form (given sometimes as G. palmatum var. leucanthum) may not come 100% true from seeds. You may end up with satiny- lavender flowers – what a tragedy! :)
Joke left apart, it is a simply superb plant for the shade garden in any colour it may be.
Germination: my method involves treating the seeds with GA3 and sowing at warm (under lights in February), in which case they will emerge with the true leaf. Saying goes that they start flowering in about 3 years – so I’m expecting my first ones next year!
Alternatively sow regularly in late fall, in which case they will emerge the true leaf in the second season. Behaviour similar with Podophyllum hexandrum and Hydrastis canadensis (its closest relative actually).