This document is part of a series originally authored by Edward Gilman.
Introduction
Bottlebrush buckeye is a deciduous shrub that is native to Alabama, South Carolina, and Georgia. This shrub has a rounded growth habit and reaches a height of 10 feet, and a spread of up to 15 feet (Figure 1). It has palmately-compound leaves (Figure 2), which display showy fall coloration (Figure 3). The plant also produces a showy summer display featuring masses of small, tubular white flowers arranged on upright cylindrical panicles (Figure 4). These panicles can range from 6 to 12 inches long and are displayed above the foliage (Figure 5). The flowers are highly attractive to pollinators. This plant is well suited as a specimen, screen, foundation, or border plant.
Credit: Ed Gilman, UF/IFAS
Credit: UF/IFAS
Credit: UF/IFAS
Credit: Ed Gilman, UF/IFAS
Credit: © John Trent, some rights reserved (CC-BY-NC-ND) via iNaturalist
General Information
Scientific name: Aesculus parviflora
Pronunciation: ESS-kew-lus par-vif-FLOR-uh
Common name(s): bottlebrush buckeye
Family: Sapindaceae
Plant type: shrub
USDA hardiness zones: 5A through 9A (Figures 6 and 7)
Credit: This map is based on the 2023 USDA Plant Hardiness Zone Map. Visit https://planthardiness.ars.usda.gov/ for specific zone information.
Credit: This map is based on the 2023 USDA Plant Hardiness Zone Map. Visit https://planthardiness.ars.usda.gov/ for specific zone information.
Planting month for zone 7: year-round
Planting month for zone 8: year-round
Planting month for zone 9: year-round
Origin: not native to Florida
Invasive potential: not known to be invasive
Uses: specimen; screen; foundation; border; attracts pollinators
Availability: somewhat available, may have to go out of the region to find the plant
Description
Height: 5 to 10 feet
Spread: 10 to 15 feet
Plant habit: round
Plant density: moderate
Growth rate: slow
Texture: coarse
Foliage
Leaf arrangement: opposite/subopposite
Leaf type: palmately compound
Leaf margin: crenate
Leaf shape: oblong; obovate
Leaf venation: pinnate
Leaf type and persistence: deciduous
Leaf blade length: 4 to 8 inches
Leaf color: green
Fall color: yellow
Fall characteristic: showy
Flower
Flower color: white
Flower characteristic: summer-flowering, showy
Fruit
Fruit shape: elongated
Fruit length: 1 to 3 inches
Fruit cover: dry or hard
Fruit color: brown
Fruit characteristic: showy
Trunk and Branches
Trunk/bark/branches: typically multi-trunked stems; not particularly showy
Current year stem/twig color: gray/silver
Current year stem/twig thickness: thick
Culture
Light requirement: plant grows in partial shade; plant grows in the shade
Soil tolerances: extended flooding; acidic; sand; loam; clay
Drought tolerance: moderate
Soil salt tolerances: poor
Plant spacing: 6 to 8 feet
Other
Roots: sprouts from roots or lower trunk
Winter interest: no special winter interest
Pest resistance: long-term health usually not affected by pests
Toxicity: all parts of this plant exhibit medium toxicity if ingested; poison toxic principles include glycose aesculin, saponin aescin, and alkaloids
Use and Management
Bottlebrush buckeye thrives in partial to full shade. It is a moderately drought and flood tolerant species and may be planted in a variety of soil conditions. Consider the full size of this plant when placing it in the landscape, as this spreading shrub looks best in its natural unpruned shape. Fall coloration is yellow, occasionally developing into a short-lived showy display. Bottlebrush buckeye is an excellent plant for shaded or wet areas in the landscape and is highly attractive to pollinators. Care should be used with this plant around pets and children, as all parts of the plant are toxic if ingested, especially the nuts produced in the fall.
Design Considerations
Bottlebrush buckeye works well as a background or massing plant to highlight the forms and colors of companion plants and block undesirable views. The fine texture and medium leaves of the buckeye will show well with contrasting plant features such as large leaves, coarse texture, thick stems, and dark green or burgundy color. Other contrasting textures include thin blades and clumping, arching forms of grasses and other vase-shaped, small-leaved shrubs. Contrasting size and shape such as low-growing groundcover with a sprawling, mounding form will emphasize the upright, arching shape of buckeye. To create large plant masses, select plants with similar characteristics that blend with the buckeye.
Pests and Diseases
No pests or diseases of major concern.