A number of problems can cause a plant's leaves to turn yellow, such as too much sun, lack of nitrogen, iron chlorosis or pest infestations, depending on the type of plant and its current habitat. number of problems can cause a plant's leaves to turn yellow, such as too much sun, lack of nitrogen, iron chlorosis or pest infestations, depending on the type of plant and its current habitat.
Plumbago plants, also known as plumbago auriculata or cape leadwort, grow well in warm climates. They are a great addition to a garden, as they attract butterflies and are ignored by deer. Plumbagos are bushy plants that can grow 3-10 feet high and just as wide, according to Gardening Central.
Japanese Knotweed gets no respect. Nearly everywhere it grows itâs listed as a prolific, noxious, invasive, dangerous bad-for-the-world, the-sky-is-falling weed. Oh by the way, itâs edible. Might be even really healthy for youâ¦. pesky weeds have that habit.otanically take your pick: Japanese Knotweed is known as Fallopia japonica, Polygonum cuspidatum, and Reynoutria japonica. In Europe they prefer Fallopia japonica (named for Gabriello Fallopia, 16th century Italian anatomist who âdiscoveredâ fallopian tubes.