Belonging to the Lettuce genus (Lactuca sativa 'Emperor'), Emperor is a variety of Lettuce. This variety is an Vegetable that typically grows as an Annual, which is defined as a plant that matures and completes its lifecycle over the course of a single year. Emperor normally reaches to a mature height of 9.75 inches (25.0 cm).
Due to how easy it is to grow in a variety of conditions, Emperor Lettuce is great for beginner gardeners and those that like low maintainance gardens.
This variety plant info is provided by the myfolia gardener's wiki. All details about Emperor have been kindly provided by our members.
How to grow Emperor
Try to plant in a location that enjoys partial sun and remember to water often. Keep in mind when planting that Emperor is thought of as tender, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside. The USDA Hardiness Zones typically associated with Emperor are Zone 4 and Zone 9. Planting Emperor in loamy soil with a ph of between 5.8 and 6.8 is ideal for as it does best in weakly acidic soil.
Growing Emperor from seed
Try to aim for a seed spacing of at least 7.8 inches (20.0 cm) and sow at a depth of around 0.27 inches (0.7 cm). Soil temperature should be kept higher than 5°C / 41°F to ensure good germination.
As Emperor is tender, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.