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.
Plum Trees-types of fruit trees A plum tree planting of 81 trees produces approximately 1,000 plums per tree and 82,000 per acre. Conventional high-density plantings have not proven successful, however Tree Plantation high yield plantings can more than double production.oth blue and yellow plum trees benefit from this growing system including types of plum trees like Methley plums, Blue plums, Yellow plums and Italian plums, which are typically dried in California to make prunes. One plum growing station produces approximately 400 plums.