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.
Monarda fistulosa-Bergamot. 1  the leaves are used to make a peppery-tasting tea that was used to treat bloating and stomachache as well as bladder and blood problems. 2  This pretty plant is usually found in waste places and at the edge of poplar groves. 3  The seed head is a nice, flat button, often seen in dried arrangements.onarda fistulosa-Bergamot. 1  the leaves are used to make a peppery-tasting tea that was used to treat bloating and stomachache as well as bladder and blood problems. 2  This pretty plant is usually found in waste places and at the edge of poplar groves. 3  The seed head is a nice, flat button, often seen in dried arrangements.