Water newly planted Bristly Locust regularly until established. Once mature, it is drought-tolerant and prefers well-drained soil.

Water deeply during prolonged dry spells, but avoid waterlogging, which can lead to root rot. Overwatering is more detrimental than infrequent watering.

Prune Bristly Locust in late winter or early spring to remove dead, damaged, or crossing branches. It can be pruned to shape and control size.

Its natural shrubby habit is attractive, so heavy pruning is usually not necessary unless aiming for a specific form. Remove suckers promptly.

Propagation is typically done by seed, which may require stratification (cold, moist treatment) to improve germination. Softwood or semi-hardwood cuttings can also be taken in summer.

Division of suckers in early spring is another effective method for increasing plant numbers.

Repotting is generally not applicable as Bristly Locust is a large shrub or small tree typically grown in its permanent location. If starting from a containerized specimen that needs to be moved to a larger pot for a season or two before planting out, use a pot only one size larger and ensure good drainage.