Poverty brome is widely dispersed, with native ranges spanning parts of Europe, Asia, and Northern Africa. In contrast, poverty brome has been introduced to various continents including Asia, Europe, North and South America, and Oceania. Although not a major cultivar, poverty brome can be found in specific regions where it is sometimes thought to be less beneficial to ecosystems, possibly impacting flora and fauna diversity, particularly in places such as Northern Europe and Oceania.

Poverty brome originates from regions of Europe and Asia. This plant is categorized as a weed due to its strong capacity for reproduction and spread. Poverty brome's ability to produce a high volume of seeds, which can germinate under a wide range of conditions, enables it to colonize a variety of habitats. This poses a significant threat to gardens as it can rapidly outcompete desirable plants for available resources, such as nutrients, light, and space. Additionally, poverty brome's dense growth habit can impede the growth of other plants by reducing light penetration. The main method by which poverty brome spreads is through its abundant seed production. Its seeds are easily dispersed by wind and water, as well as by adhering to animals or being inadvertently spread by human activity.

The best season to manage poverty brome is spring, particularly early to mid-spring. It's crucial to remove poverty brome before it begins to flower and produce seeds, usually in late spring or early summer, to prevent it from spreading.