If you are new to the concept of native plants, the short answer for why you should plant them is simply: they belong here.
For millions of years our native species have evolved and adapted to survive in the spaces we now occupy. Temperature, precipitation, humidity, soil type, seasonal changes, and symbiotic relationships with other organisms are all factors that have influenced and designed the very species that you will find in your closest natural areas or if you’re lucky, your own backyard. These plants are connected to the local ecology and belong to a system that depends on them to thrive. It is easy to overlook the impact of these small but extremely important relationships. Insects have the closest relationship with natives, often depending on one specific genus or species for their survival.