In the border zone of vegetation management, what is established under 25 feet at maturity?

The border zone of vegetation management refers to those areas adjacent to utility lines where specific types of vegetation are managed to ensure clearance and reduce the risk of interference with electrical infrastructure. In this context, the correct answer highlights the types of vegetation that are less likely to grow too tall and potentially cause problems for utility services.

Small trees and tall shrubs are ideal in this zone because they typically reach a mature height of less than 25 feet. This characteristic fits the requirements for reducing risks associated with power lines, which could be damaged or pose a safety hazard if higher vegetation were allowed to grow. By managing the border zone with these types of plants, utility companies can maintain the necessary clearances while also supporting local biodiversity and aesthetics.

In contrast, large trees, pines, oaks, and medium shrubs tend to exceed the 25-foot height threshold at maturity. This can pose significant operational issues for utility companies, leading to increased maintenance, potential outages, and safety hazards. Therefore, using small trees and tall shrubs strategically in the border zone allows for safer vegetation growth while ensuring effective management of the area surrounding electrical infrastructure.