Oak Leaf Lettuce Green Oak Leaf Lettuce I’m ready to pick! Mild and soft tasting lettuce. To pick: Remove leaves with a knife as required from the base in order to let the smaller leaves at the top of the plant continue to grow. I take a minimum of 60 days to be ready for harvest! Please be mindful that this garden is a shared space. Kindly only pick what you will consume at the time of harvest