Reabsorbtion. Occuring more commonly within the nephron system than filtration, this is a form of active transport which takes the the useful substances for the body from the tubules and places them back into the blood filled capillaries.
Oleanders are shrubs, but they are _big_ shrubs. Most of the varieties in cultivation top out at 8 to 12 feet tall and about the same width. The wild form, and some of the older cultivars used for windbreaks top out at 20 x 20 feet.
Oleanders that are not getting enough water will look normal but have an open canopy and not bloom well. Oleanders are high water users and love fertilizer. They do not like to be watered daily but will not do their best if the soil starts drying between waterings.ater when the dial is about half way between wet and dry, do not let it get totally dry. Next, use a fertilizer like Miracle Gro and water it into the soil about once every six to eight weeks. Cover the soil in the container with mulch to help keep the soil moist.