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.
Dig a hole approximately 6- to 8- inches deep, and plant the entire chayote fruit with the fat end down and the fruit angled so the stem end is level with the surface. If started in a pot, transplant when the danger of frost has passed. Plants should be spaced 10 feet apart. Water regularly, and do not let the soil dry.