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.
Attracting Good Bugs. Not all insects are bad. There are some bugs that are beneficial to your garden, and some herbs attract them. Bees, for instance, are critical for pollinating vegetable flowers to create the fruit. Ladybugs, green lacewings, ground beetles and hoverflies feed on aphids, mites, scales, mealybugs and other damaging pests.