Pulmonary blood pressure is normally a lot lower than systemic blood pressure. Normal pulmonary artery pressure is 8-20 mm Hg at rest. If the pressure in the pulmonary artery is greater than 25 mm Hg at rest or 30 mmHg during physical activity, it is abnormally high and is called pulmonary hypertension.
Plant Types. Tropical hibiscus (Hibiscus rosa-sinensis) are evergreen, or shrubs that keep their leaves all year. On the other hand, hardy hibiscus, members of the genus Hibiscus with more than 200 species, are deciduous. Their leaves die off in winter. They have heights up to 15 feet and widths from 4 to 8 feet.
An evergreen shrub with abundant flowers, hibiscus is most often planted as a shrub in outdoor landscaping. It is possible to grow hibiscus in containers indoors if you have a spot that receives full sunlight for at least six to eight hours a day. If you live in an area that is too cold in winter for outdoor hibiscus, another option is to move hibiscus outdoors to patios or balconies during the warm months and indoors for winter. Attending to the specific needs of your hibiscus will encourage it to grow healthy and strong, even inside.