Creating a memory garden in outdoor plant boxes is a wonderful way to enhance cognitive function and relaxation. Certain plants are particularly effective for stimulating memory and soothing the mind. Here are the top choices:

1. Lavender: Known for its calming scent, lavender reduces stress and improves focus, making it ideal for memory gardens.

2. Rosemary: This aromatic herb has been linked to enhanced memory retention and mental clarity.

3. Sage: With its earthy fragrance, sage is believed to boost brain function and concentration.

4. Mint: Refreshing and invigorating, mint helps clear the mind and improve alertness.

5. Marigolds: Their bright colors uplift mood, while their subtle scent promotes relaxation.

Pair these plants with well-draining soil and adequate sunlight for optimal growth. A memory garden in outdoor plant boxes not only beautifies your space but also supports mental well-being.