Water moderately when the top inch of soil feels dry. Avoid overwatering, as this can lead to root rot.

Ensure good drainage in the pot or garden bed to prevent waterlogged conditions, especially during the cooler months.

Pruning is generally not required for *Sisymbrium loeselii*. If the plant becomes leggy or unruly, light trimming can be done after flowering to maintain a more compact shape.

Remove any dead or damaged stems as needed to keep the plant tidy.

Propagated easily from seed sown directly into the garden bed in early spring or autumn. Seeds germinate quickly under favorable conditions. Can also be propagated by stem cuttings taken in late spring or early summer.

Repotting is rarely necessary as *Sisymbrium loeselii* is typically grown as an annual or short-lived perennial. If grown in a container and it becomes root-bound, repot into a slightly larger container in spring with fresh, well-draining potting mix.