Problem Plants in Your California Garden
Some plants that have been introduced into California grow a little too well. They have escaped gardens and spread into natural areas, choking out native vegetation and destroying wildlife habitat. Lots of manual labor and herbicides are used to remove these pests from the wild. Unfortunately they are continuously reintroduced by unwitting gardeners planting them in their gardens. As these plants have come from other areas of the world, they are without their normal biological controls; that is the herbivores that would normally eat them and insects, birds and small animals that would eat their seeds, lowering their germination rate. Here are a few plants that are exceptionally aggressive and should be avoided.