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.
Catnip (Nepeta cataria) has less ornamental value in the garden than its catmint (Nepeta mussinii) counterpart. Catnip is also found to be highly attractive to cats, with many of them exhibiting a naturally induced euphoria around the plant.he leaves and shoots can be added to soups and sauces. Tea made from the leaves and flowers can be used for calming nerves and relieving coughs, congestion, and menstrual cramps. Catmint, is an aromatic herb that is commonly grown in the garden.