Aesculus hippocastanum 'Baumanii'

Baumanii Horsechesnut

Aesculus hippocastanum ‘Baumannii’ is a classic flowering shade tree prized for its large, double white flower panicles and its key advantage over the species—it produces no nuts. This makes it a cleaner, lower-mess alternative to common horse chestnut for prominent landscape settings.

Key Characteristics and Benefits


Flowers & Color: Large, upright panicles of double white flowers with subtle yellow markings in mid to late spring; longer-lasting than single-flowered forms.



Fruitless: Sterile cultivar—no spiny seed pods, reducing litter and maintenance.



Foliage: Large, palmate dark green leaves that create a bold, coarse texture.



Growth Habit: Upright to rounded canopy with strong, symmetrical branching.



Size: Typically reaches 50–70 ft tall with a 40–60 ft spread.



Care and Requirements


Hardiness: USDA Zones 4–7



Light: Full sun to partial shade



Soil: Prefers moist, well-drained soil; tolerates heavier soils



Water: Moderate; benefits from consistent moisture



Maintenance: Low; minimal pruning needed



Limitations: Susceptible to leaf scorch and leaf blotch in hot, dry conditions; avoid droughty or compacted sites



Summary:
‘Baumannii’ Horse Chestnut is an excellent choice for parks, campuses, estates, and large lawns, offering dramatic spring bloom and bold shade without the mess of falling nuts.

Plant type

Flowering Ornamental Tree

Height

50-70'

Width

40-50'

Hardiness zones

4–7

Sunlight

Full Sun, Partial Shade

Growth rate

Fast

Bloom time

Late Spring, Spring

Flower color

White

Leaf color

Green

Fall color

Yellow

Attracts

Butterflies, Hummingbirds

Soil

Clay

Shape

Oval Upright

Bark

Exfoliating

Fruit

Yes

Fragrant

Yes

Deer resistant

Yes

Salt tolerant

Yes

Drought tolerant

No