Lettuce
Oak leaf lettuce
Oak leaf lettuce: Sowing, planting and harvest calendar
Oakleaf lettuce is a group of lettuces with lobed leaves, usually arranged in an open rosette rather than a tight head. It belongs to Lactuca sativa, in the aster family. The name refers to the leaf outline, which resembles oak foliage. It describes neither a tree nor one single lettuce cultivar.Rounded lobes and indentations along the margins create the characteristic silhouette. The leaves are relatively flat compared with strongly frilled lettuces, but their divided outline adds texture to the plant. Several separate leaves remain visible around a centre that continues producing foliage. This arrangement explains its place among loose-leaf lettuces and young salad-leaf mixtures.Both green and red oakleaf types exist, with different degrees of colouring. Some are pale green to yellow-green, while others combine green with dark red or have extensively coloured leaves. The shade, depth of the lobes and size of the rosette depend on the cultivar. The general…
