Creating a stunning jun garden in outdoor plant boxes requires careful selection of plants that thrive in confined spaces while adding beauty and harmony to your outdoor space. Here are some of the best plants to consider for your jun garden:

1. Dwarf Conifers: These compact evergreens, such as Juniperus procumbens 'Nana,' are perfect for jun gardens, offering year-round greenery and a sculptural element.

2. Ornamental Grasses: Varieties like Hakonechloa macra add texture and movement, complementing the serene aesthetic of a jun garden.

3. Mosses: Ideal for ground cover, mosses like Sheet Moss (Hypnum) create a lush, tranquil vibe and require minimal maintenance.

4. Azaleas: These flowering shrubs bring vibrant colors to your plant boxes, especially in spring, and their compact size fits well in containers.

5. Bamboo: Clumping bamboo species, such as Fargesia, provide height and privacy without invasive spreading, making them great for jun gardens.

6. Succulents: Drought-tolerant plants like Sedum or Sempervivum add unique shapes and low-maintenance appeal.

7. Ferns: Japanese Painted Ferns (Athyrium niponicum) thrive in shaded areas, adding delicate foliage and a touch of elegance.

By combining these plants, you can create a balanced and visually appealing jun garden in your outdoor plant boxes. Ensure proper drainage and regular care to keep your garden thriving. Whether you prefer a minimalist or lush design, these plants will help you achieve the perfect jun garden aesthetic.