If an individual has a low white blood cell count, his or her body becomes susceptible to serious illnesses and infections. A low white blood cell count can indicate the presence of one or more serious health problems, such as leukemia, hyperthyroidism, aplastic anemia, or an infectious disease.
To test: add 2 teaspoons of garden soil to a jar and a few inches of cabbage water. Stir and wait for 30 minutes. Check the color. If it turns pink, your soil is acidic. If it is blue/green, your soil is alkaline. There are quite a few fruit and vegetable plants that thrive in acidic soil.
Soil pH. Soil testing, using a kit, helps determine the pH and nutrient qualities of the soil. Clematis requires a pH near 7.0. Sites with a lower pH are too acidic for best growth, but adding agricultural limestone to the site at least one month before planting can raise the pH sufficiently. The amount of required limestone is detailed on the soil test results.