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.
1 A standard spacing for rabbiteye blueberries is 5 to 6 feet between plants in a row and 11 to 12 feet between rows. 2  For highbush (southern or northern) a spacing of 4 feet between plants in a row and 10 feet between rows is suggested.3  If developing individual specimen plants give plants a 25 to 40 ft 2 area each.any southern highbush are self fertile, however, the planting of multiple varieties is still recommended for improved fruit set. Early season southern highbush will ripen 2 to 3 weeks before early rabbiteyes, and mid-season varieties will ripen 8 to 12 days before early rabbiteyes.