Urtica aspera prefers consistent moisture. Water thoroughly when the top 2-3 cm of soil feels dry. Avoid waterlogging the roots, as this can lead to rot.

During hot, dry periods, more frequent watering may be necessary to maintain optimal soil moisture levels.

Pruning is generally not required for Urtica aspera unless it becomes overgrown or unsightly. If desired, trim back in late spring or early summer to encourage bushier growth or to control its size.

Dead or damaged stems can be removed at any time.

Urtica aspera can be easily propagated by seed sown in spring, either directly outdoors or in a cold frame. Division of established clumps in spring is another effective method.

Cuttings can also be taken from young shoots in late spring or early summer.

Repotting is typically only necessary for Urtica aspera if it is being grown in a container and has become root-bound. Spring is the ideal time to repot.

Choose a pot that is slightly larger than the current one, using a well-draining potting mix. Ensure the root ball is kept intact during the process.