Organized (normally non-profit) bodies of people engaged in the practice or promotion of the art or science of landscape architecture.
- Open Directory Arts: Visual Arts: Sculpture
- Open Directory Home: Gardening: Landscaping
- Open Directory Science: Social Sciences: Urban and Regional Planning
- Open Directory Shopping: Home and Garden: Landscape Design
- Open Directory Shopping: Home and Garden: Patio
- Open Directory Shopping: Home and Garden: Garden Accessories