Step 1: Understanding the Concept:
Color theory is a key design principle in landscape architecture.
Flower colors are arranged on a color wheel to produce visual harmonies, classified into cool (soft) and warm harmonies.
Step 2: Detailed Explanation:
- Statement (I) is true: Cool colors (such as blues, purples, and soft violets) create a relaxing, quiet, and spacious visual effect in a garden.
This cool harmony is achieved by grouping flowers that naturally carry these cool pigments, such as blue sweet peas, blue-violet China asters, and purple/blue petunias.
- Statement (II) is true: Warm colors (such as bright yellows, oranges, and deep reds) create an energetic, lively, and intimate garden space.
Warm harmony is created by combining flowers with warm tones, such as yellow antirrhinums with orange-flowered dimorphothecas, or yellow marigolds with orange antirrhinums.
Step 3: Final Answer:
Both statements regarding landscape color harmonies are correct.