They will spam you forever

Be aware that the moment you sign up with them you will never stop receiving unsolicited marketing mails and it is impossible to unsubscribe. The unsubscribe link at the bottom of the email does nothing and they will still spam you even if you explicitly mail them and request to be removed from their mailing list. Easiest way to avoid this is just to never sign up with them and use a more reputable florist instead.