For planter bollards, which are designed to combine the functionality of a bollard with the aesthetic appeal of a planter, the following types of plants are suitable:
1. **Drought-Tolerant Plants**: These plants require minimal watering, making them ideal for urban environments. Examples include succulents like Sedum and Echeveria, and drought-resistant grasses like Blue Fescue.
2. **Perennials**: These plants return year after year, reducing the need for replanting. Suitable options include Lavender, Salvia, and Coreopsis, which offer vibrant colors and attract pollinators.
3. **Evergreens**: Providing year-round greenery, evergreens like Boxwood, Dwarf Alberta Spruce, and Juniper are excellent choices for maintaining visual interest throughout the seasons.
4. **Compact Shrubs**: These provide structure and can be pruned to maintain shape. Varieties like Dwarf Hydrangea, Spirea, and Barberry are popular for their manageable size and colorful foliage.
5. **Ornamental Grasses**: Adding texture and movement, grasses like Fountain Grass and Japanese Forest Grass are low-maintenance and thrive in various conditions.
6. **Herbs**: For a functional and aromatic touch, herbs such as Rosemary, Thyme, and Sage can be planted. They are hardy and can withstand urban pollution.
7. **Annuals**: For seasonal color, annuals like Petunias, Marigolds, and Geraniums can be used. They offer vibrant blooms and can be changed out yearly for variety.
8. **Trailing Plants**: To soften the edges of the planter, trailing plants like Creeping Jenny, Sweet Potato Vine, and Bacopa can be used. They cascade over the sides, adding a lush appearance.
Selecting plants that are hardy, low-maintenance, and suitable for the local climate will ensure that planter bollards remain attractive and functional throughout the year.