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.
If you're planting this type. If you're planting this type of plum tree, just keep in mind that it has a wider spread (15 to 20 feet). As with most plums, plant in fertile, well-drained soil and ensure periodic deep watering in summer months.See this page for more plum planting information.apanese plum trees can grow pretty big depending on the variety. Even dwarf varieties grow to 10 feet wide when mature. Check to see how big your plum trees will grow and then decide if you need to move a couple of trees.