We purchased rudbeckia hirta seeds (20,000). How do I know if they require...

Asked September 5, 2019, 1:39 PM EDT

We purchased rudbeckia hirta seeds (20,000). How do I know if they require stratification? No information from seller. Can I put them in refrigerator if its required?

Wayne County Ohio

1 Response

Yes, these seeds require stratification to germinate. See the information in this fact sheet from Clemson University:

Sincerely,
Rory Lewandowski