Feb. 11, 2025

Gardening for Biodiverse Landscapes

Biodiversity refers to the variety of life in a particular habitat or ecosystem. For example, lavender supports honeybees and red tubular flowers attract hummingbirds. A lack of wildlife indicates that a garden is not biodiverse. As humans develop natural landscapes, they become inhospitable to wildlife. Since everything in nature is connected, the decline of one species can have negative consequences for others, so intentionally supporting diverse species is important for maintaining the local ecosystem.  

Biodiverse landscapes offer a multitude of benefits including water filtration and purification, climate regulation and supporting mental health. Studies have found that listening to birdsong can reduce stress and increase cognitive function.  

Tips to transform a yard or garden into a biodiversity hotspot include:  

yellow butterfly on purple flowers

Native plants: Native plants have co-evolved with insects and birds. Research suggests that a landscape consisting of at least 70 percent native plants is able to support a healthy bird population.  

  • Food variety: At least three types of food sources from plants that produce nectars, pollen, seeds or berries will support pollinators and caterpillars.  
    • Most flowering plants produce pollen and nectar, so it is important to choose different flower shapes to support different types of pollinators.  
    • Service berries, sunflowers and ornamental grasses are examples of plants that produce seeds and berries which will attract a variety of bird species.  
    • Trees such as oaks, boxelders and cottonwoods can host hundreds of species of caterpillars, which is what birds feed their young.  
  • Water: Providing a bird bath, pond or even a dish of water with rocks in it will create a reliable source of water for garden inhabitants and visitors.  
  • Shelter: Adding a native tree or fruit-bearing shrub will allow birds to nest and hide from predators among a perennial-filled garden.  

For additional information about creating a biodiverse landscape, explore these resources: