An ecologically-sustainable garden is both beautiful and able to attract and sustain pollinators and beneficial insects, reducing the need for pesticides. Plant selection directly affects beneficial insect populations, those insects that can provide ecological benefits such as biodiversity and natural pest control. This concept of “habitat management” provides a refuge for the insects during winter, and nectar and pollen resources, leading to increases in pollination and populations of other beneficial insects that help control pests in the garden.