How close together can you plant Bonita ash trees?

Bonita ash trees (Fraxinus pennsylvanica 'Bonita') should ideally be planted at least 20 to 30 feet apart to allow for their mature size and canopy spread. Planting them too close together can lead to competition for resources, stunted growth, and increased susceptibility to pests and diseases. However, if you're creating a specific landscape design or screening, consult local guidelines for optimal spacing.