Gardening: Maximize your lettuce season Thu, 07/09/2020 - 2:39pm meganj BY CAREFUL TIMING and variety selection, gardeners can extend their lettuce season to up to seven months. The full text of this article is only available to online subscribers. Are you an online subscriber? Login using the form below. Click here to learn more about our subscription options. If you have a print subscription, you can now add an online subscription at no additional charge! Just email us with your name and mailing address to set it up.