Name three basic design principles used in residential landscape planning and give a brief description of each.

• A. Unity/recurrence – cohesive look through repetition; Balance – symmetry or visual equilibrium; Proportion/Scale – size of elements relative to space; Rhythm – repetition and progression.
• B. Unity/recurrence – random color use; Balance – asymmetry; Proportion/Scale – equal sizes; Rhythm – random patterns.
• C. Unity/recurrence – color harmony only; Balance – no symmetry; Proportion/Scale – not important; Rhythm – shape emphasis.
• D. Unity/recurrence – variation; Balance – uniform texture; Proportion/Scale – tiny elements; Rhythm – static arrangement.

Answer: (A)

Residential landscape planning relies on a few fundamental design principles to create a space that feels cohesive, balanced, and comfortable to use. The best set emphasizes unity through recurrence, balanced visual weight, proper size relationships, and a sense of movement.

Unity/recurrence means a cohesive look comes from repeating elements—colors, textures, forms, or motifs—across planting beds, hardscape, and furnishings. This repetition ties different areas together so the landscape reads as a single space rather than a collection of unrelated parts.

Balance describes how visual weight is distributed so the scene feels stable. This can be formal and symmetrical, where elements mirror each other, or informal, where uneven placements still achieve equilibrium through mass, shape, and color. The key is that no part of the landscape feels visually heavier than the rest.

Proportion/Scale is about the size relationship between elements and their space. Elements should be in scale with the site and with human use—tall trees and large shrubs should suit the yard, not overwhelm or look dwarf-like next to the house or path.

Rhythm introduces a sense of flow through repetition and progression. By repeating plant forms or colors along a path or across beds and then varying them gradually, the eye is guided through the landscape in a pleasing, predictable way.

These principles together help you plan a residential landscape that feels intentional and comfortable. The other options describe ideas that don’t align with these established notions—such as randomness in color, insisting on asymmetry as the only form of balance, treating proportion as less important, or using random patterns—which would typically undermine cohesion, balance, or readability in a yard.