No – because it’s already been there. Some seeds need a period of cold before they will germinate. To enable the cold-germinating seeds in the mix to be activated, we pack them in a freezer for three weeks before we use them. These plants thrive especially well when kept below 5 degrees for another two to three weeks after germination – this happens during the cold winter period without any need for you to intervene. Any seeds that miss out on this will get to enjoy their moment after winter and frost the next year.