While researching landscaping in public spaces, a student has taken the following notes:
- Many cities maintain turfgrass in street medians and around public buildings.
- Native plants are adapted to local environmental conditions.
- Once established, native plantings often require less supplemental irrigation than turfgrass, helping cities conserve water.
- Native plantings generally need less frequent mowing than turfgrass, reducing routine labor and fuel costs.
- Installing native plantings can cost more initially than planting turfgrass.
The student wants to write a sentence that emphasizes both an environmental advantage and a routine maintenance cost advantage of established native plantings over turfgrass. Which choice most effectively uses relevant information from the notes to accomplish this goal?