Creating a syrup garden in outdoor plant boxes is a delightful way to grow flavorful plants for homemade syrups. Here are the best plants to consider:

1. Elderberry (Sambucus nigra) – Known for its immune-boosting properties, elderberries produce rich, dark syrups perfect for cocktails or wellness drinks.

2. Mint (Mentha spp.) – Easy to grow and refreshing, mint syrups are ideal for teas, desserts, and summer beverages.

3. Lavender (Lavandula angustifolia) – Adds a floral touch to syrups, great for baking or relaxing herbal infusions.

4. Lemon Balm (Melissa officinalis) – Offers a citrusy flavor, perfect for light syrups or soothing teas.

5. Rosemary (Rosmarinus officinalis) – A woody herb that infuses syrups with a savory-sweet depth, excellent for cocktails.

For success, ensure your plant boxes have good drainage and sunlight. Harvest leaves or berries at peak freshness for the best syrup flavors. Happy gardening!