Water regularly during establishment. Once mature, Melilotus dentatus is drought-tolerant and prefers well-drained soil. Allow the soil to dry out between waterings.

Overwatering can lead to root rot, especially in poorly draining conditions. Aim for consistently moist soil in the initial growth phase.

Pruning is usually not necessary for Melilotus dentatus, as it is a self-limiting annual or biennial. If desired for aesthetic reasons or to prevent excessive self-seeding, prune back after flowering.

This can help manage its spread and encourage a tidier appearance in garden settings.

Melilotus dentatus is easily propagated by seeds. Sow seeds directly into the garden in early spring or autumn. Scarification of the seed coat may improve germination rates.

Seeds can also be collected and stored for sowing the following year. It readily self-seeds.

As Melilotus dentatus is typically grown as an annual or biennial and often directly sown, repotting is rarely necessary. If starting plants in containers for transplanting, select a pot size appropriate for the seedling's current root ball and transplant when seedlings are robust enough to handle.