Keep the soil consistently moist, especially during the growing season. Allow the top 2-3 cm of soil to dry out slightly between waterings. Reduce watering in winter to prevent waterlogged roots.

Ensure good drainage to avoid root rot, as *Rubus polonicus* prefers moderate moisture levels.

Prune *Rubus polonicus* in late winter or early spring before new growth starts. Remove any dead, damaged, or crossing canes. Thin out weaker canes to improve air circulation and light penetration.

Depending on the growth habit, you may need to manage primocanes and floricanes.

This species can be propagated by root cuttings, layering, or division of established clumps in late winter or early spring. Softwood cuttings can also be taken in early summer.

Ensure cuttings are taken from healthy parent plants and provided with adequate moisture and warmth for rooting.

Repotting is generally not necessary for established garden plants. For container-grown *Rubus polonicus*, repot every 2-3 years in early spring into a slightly larger pot. Use a well-draining potting mix.

Ensure the root ball is kept intact and watered thoroughly after repotting.