No. Remember, putting seeds in the freezer isn't going to give you cold strat unless there is a moist medium. They winter sow just fine. In fact, I have great luck spring and summer sowing them too. They like warm temps and grow best for me in drought conditions.

Relax, have fun and enjoy.

Gaillardia is on my "No cold stratification" list based on information from both Diane's Flower Seeds & Swallowtail. They're very easy to grow via WS and bloom non-stop. This was taken just yesterday:

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