I thought while I was digging around for information concerning stratification and scarification I'd add whatever other interesting needs some seeds need and these are the ones that seemed to be best planted outdoors in the fall.

These seeds need warm, cold, warm temperatures to germinate.

New Zealand Burr, ACAENA buchananii

Bears Breeches, Acanthus hungaricus

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And the rose seeds from what I understand. And the list grows on.

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