The titles below are online journals (note the coverage period, as you may have to use some earlier issues in print):
Architectural Design
Architectural Record
Architectural Review
Architectural Design
Architectural Digest
Architectural Record
Architectural Review
Architectural Science Review
Design Book Review
Design Methods and Theories
Design Quarterly
Design Studies
Ekistics
Environment & Behavior
Environment and Planning
Garden Design
Garten und Landschaft
Historic Preservation
Hortus
Inland Architect
Journal of Environmental Psychology
Journal of Garden History
Journal of the American Planning Association
Land Design
Land Use Digest
Landscape
Landscape and Urban Planning
Landscape Architecture
Landscape Architectural review
Landscape Design
Landscape Ecology
Landscape Journal
Landscape Planning
Landscape Research
Landscapes - Paysages
Landskab
Landskap
Nature Conservancy Magazine
Parks and Recreation
Places
Town Planning Review
Transportation Quarterly
Urban Ecology
Urban Land
Urban Land Europe