Pitch is how high or low we hear a sound to be. If the frequency is higher, the pitch is higher. The unit of frequency is hertz. Ghz, or gigahertz, also can be used to measure frequencies. We can hear all the way up to 20,000 hertz! To conclude, the higher the frequency, the higher the pitch.
Several species of honeysuckle have become invasive when introduced outside their native range, particularly in New Zealand and the United States. Invasive species include L. japonica, L. maackii, L. morrowii, and L. tatarica.ost honeysuckle berries are attractive to wildlife, which has led to species such as L. japonica and L. maackii spreading invasively outside of their home ranges. Many species of Lonicera are eaten by the larvae of some Lepidoptera species â see a list of Lepidoptera that feed on honeysuckles.
Special Considerations. Not every attractive flowering perennial vine is suitable for the U.S. Department of Agriculture plant hardiness zone 10 climate. Many are such prolific growers that they are considered invasive.Alternatively, many expensive foreign specimens donât grow well in USDA zone 10. For guaranteed growing success, pick a flowering vine that is native to California and noninvasive.ink honeysuckle vine (Lonicera hispidula) is a perennial that is native to California and noninvasive. It is hardy in USDA plant hardiness zones 4 through 11. Left on its own, it develops a woody, shrublike canopy. However, when trained to climb, it creates a gorgeous flowering vine that blooms in May and June.