Product review for Seashell Cosmos Overall Rating: Write an online review and share your thoughts with other customers Sort Reviews: Newest | Oldest | Highest Rating | Lowest Rating   :: Viewing page 1 of 1  -  Friday, February 02, 2007 nanadaughn Reviewed By: daughn block (naples , florida) I grew these in Michigan with great success and they were beautiful all summer. Since moving to Southwest Florida I have not seen any grown- only the Sensation series for an early Spring fill-in. They take all but the scorching summer heat here in Florida and will come back nicely when you cut them back.