Which plant type is likely to be pest-resistant in a landscape?

The option highlighting common pest-resistant plants is the correct answer because these plants have been specifically identified and bred to withstand pests and pathogens that typically affect other varieties. This resistance can arise from natural defenses such as thicker skins, toxins, or specific growth habits that deter pests from feeding on them. By incorporating these types of plants into a landscape, gardeners can effectively reduce the need for chemical pesticides, promote ecological balance, and encourage beneficial insects.

The other options may serve particular aesthetic or functional purposes but do not inherently provide pest resistance. For instance, flowers with high water needs may attract certain pests that thrive in humid environments, decorative foliage plants do not necessarily have traits that make them pest-resistant, and low maintenance annuals might not have the durability or defenses to resist pest attacks. Therefore, selecting common pest-resistant plants strategically enhances the resilience of the landscape against potential pest threats.