Phototropism, the growth movement of plants in response to sunlight, is a fascinating phenomenon to observe in outdoor plant boxes. Certain plants excel at showcasing this behavior, making them ideal choices for gardeners. Here are the top picks:

1. Sunflowers (Helianthus annuus) – Known for their dramatic sun-tracking, sunflowers are the poster children for phototropism. Their stems bend to follow the sun’s path, creating a dynamic display.

2. Morning Glories (Ipomoea purpurea) – These climbing vines twist and turn their tendrils toward sunlight, making them perfect for trellises in plant boxes.

3. Marigolds (Tagetes spp.) – With vibrant blooms that open and close with the sun, marigolds are both phototropic and visually striking.

4. Beans (Phaseolus vulgaris) – Pole beans exhibit strong phototropic growth, stretching their stems toward light sources, ideal for vertical gardening.

5. Zinnias (Zinnia elegans) – These colorful flowers lean toward sunlight, ensuring optimal exposure for photosynthesis.

To maximize phototropism, place your plant boxes in sunny spots and rotate them occasionally for even growth. Observing these plants can be a rewarding way to connect with nature’s adaptive brilliance. Happy gardening!