Basic structure of dicotyledonous stem-Sunflower stem. Inner structure of dicotyledonous stem reveals epidermis, cortex and stele. Epidermis. Epidermis is protective in function and creates the outermost layer of the stem. Epidermis is a single layer of parenchymatous rectangular cells.
Culture. Plumbago is propagated from cuttings in the summer, but you can also grow it from seed. Plant plumbago in light, sandy, well-drained soils, spacing each shrub 36 to 60 inches apart to allow room to grow. If spaced properly, blue plumbago will naturally cascade in a fountain shape.
Those in Oklahoma City and south should grow varieties of southern highbush blueberries or the rabbiteye cultivar. Purchase two-to three-year-old bushes from a reputable nursery. It's very difficult to start a blueberry bush from seed. Locate an appropriate spot for planting in your yard with full sun.