In addition to the ten Biomes, various horticultural displays have been gradually added to the Belser Arboretum. The main display, The Botanical Garden, was planted in 2006. As soon as necessary resources were available, other exhibits were added: the CANDO Exhibit in 2007; the Caroline Belser Grimball Wildflower Exhibit, the initial Native Azalea Exhibit, the Trailside and Nursery Stock Exhibits in 2008; the Zen / Peace Exhibit in 2009; "The Orchard" and the Native Magnolia/Azalea Exhibit in 2010-2011.

The Botanical Garden at the Belser Arboretum contains both native and non-native species that are arranged in a double horseshoe shape along a stake and wire cable fence, which highlights and protects the plants. Approximately 100 perennial shrubs line the horseshoe cable. Each loop showcases one species of perennial shrub commonly used in residential landscaping in Columbia, SC gardens. The plants are arranged by sun or shade preference. Inside the horseshoe fence are 30 rare or unusual small flowering trees commonly used in Columbia residential landscaping.

The other horticultural exhibits within the Arboretum are:

The CANDO (I Can Do IT!) Exhibit are a result of a grant received in 2007 from the City of Columbia by The Sherwood Forest Community to improve the city property surrounding the Arboretum. The staff of the Belser Arboretum and members of the Sherwood Forest Community collaborated in design plan, ground preparation, and planting of the CANDO Exhibit. Currently the CANDO Exhibit is maintained by the Arboretum staff. The CANDO Exhibit consists of 750 linear feet of horticultural display gardens bordering the Bloomwood Road and Wilmot Avenue. These are planted with "pillars" of redbud and dogwood trees surrounded by clusters of native and non-native azaleas. The five-feet tall property-line fence is covered with cascades of crossvine and yellow jasmine. The spring bloom on the fence is a spectacular display.

The Caroline Belser Grimball Wildflower Exhibit lies on either side of the Outdoor Classroom and contains a collection of beautiful wildflowers that grow in the valley near the Classroom. In 2009, the tulip poplar trees in the canopy here were designated by the city of Columbia as a Treasured Tree Grove.

The Native Magnolia/Azalea Exhibit was created in 2010 after completion of major clearing and tree removal work. This work allowed for the prototype Native Azalea Exhibit to be moved from its original site near the Caroline Belser Grimball Outdoor Classroom to a more favorable wetland site that is now the Native Magnolia/Azalea Exhibit. Here you will find 7 of the 8 species of South Carolina native magnolia trees planted on the flatland below the slope. These trees were generously provided by The Figlar Magnolia Arboretum of Pickens, SC. As these grow to maturity, they will offer an ethereal view of woodland flowers in spring and summer. Many of these species are rare or endangered. The big-leaf magnolia is endangered; it is renowned for having the largest leaf of any North American forest tree and also the largest flower, 4-foot long leaf and 2-foot tall flower. On the flat, transitional wetland below are 9 species of native azalea.

The Zen / Peace Exhibit is located adjacent to the Arboretum's stream. This garden's mystique is enhanced by the towering tulip poplar trees, whose bases are carpeted with moss, and by the serene beauty of the dense fern beds and wildflowers. The Zen / Peace Exhibit is constructed of blue granite blocks for the surrounding wall, 5 exquisite river rocks for the iconic centerpiece, and polished white stream pebbles from the Arboretum stream. A separate Zen Overlook Spur Path winds up the side of a sand dune through a colony of rare red bay trees for a look at the Zen / Peace Exhibit below.

The Rare Fern and Wildflower Exhibit is found in the area surrounding the waterfall and pool in the Riparian Biome. It contains some very unique plants such as jack-in-the-pulpit, wild Easter lilies, and royal fern, as well as five other species of ferns. These plants have occurred naturally since the beginning of the Restoration in 2006. The Arboretum has been declared a Rescue Station for Endangered and Threatened Plant Species that are destined for destruction due to construction. Additional rare ferns and wildflowers will be added to this garden as they are acquired.

The Trailside Exhibit is a border strip on either side of the trail, planted with native wildflowers and small shrubs. As these plants grow and multiply, divisions are moved to outlying parts of the Arboretum for restoring the biomes.

Nursery Stock Exhibit are large clusters of rare plants located at intervals along the trail, especially near the trailhead at the Bloomwood Road Gate. As these plants grow and multiply, divisions are moved to outlying parts of the Arboretum for restoring the Biomes.

See also the Arboretum Map.