Creating a sandwich garden in outdoor plant boxes is a fantastic way to grow fresh, flavorful ingredients right at your fingertips. Whether you're a beginner or an experienced gardener, selecting the right plants is key to a thriving and productive garden. Here are some of the best plants to include in your sandwich garden:

1. Lettuce: Fast-growing and versatile, lettuce varieties like butterhead, romaine, and leaf lettuce are perfect for sandwiches. They thrive in containers and can be harvested continuously.

2. Tomatoes: Cherry or grape tomatoes are ideal for plant boxes, offering sweet, juicy bursts of flavor. Choose compact or dwarf varieties for limited spaces.

3. Cucumbers: Bush cucumbers or dwarf varieties work well in containers, providing crisp slices for your sandwiches. Ensure they have support for vertical growth.

4. Herbs: Basil, parsley, cilantro, and dill add fresh, aromatic flavors. These herbs grow well in plant boxes and can be snipped as needed.

5. Peppers: Mini bell peppers or chili peppers add a kick to sandwiches. They’re compact and productive in outdoor plant boxes.

6. Spinach: Nutrient-rich spinach is easy to grow and perfect for layering in sandwiches. It prefers cooler temperatures, making it great for early or late-season planting.

7. Radishes: Quick to mature, radishes add a peppery crunch. They’re excellent for interplanting with slower-growing crops.

For success, ensure your plant boxes have good drainage, quality soil, and adequate sunlight. Regular watering and occasional fertilizing will keep your sandwich garden flourishing. Happy gardening and enjoy your homegrown sandwiches!