Alpenrose prefers consistently moist, well-drained soil. Water deeply when the top inch of soil feels dry, especially during hot, dry periods. Avoid waterlogged conditions, which can lead to root rot.

Reduce watering in winter when the plant is dormant, but ensure the soil doesn't completely dry out.

Prune Alpenrose immediately after flowering to maintain shape and size. Remove any dead, damaged, or crossing branches. Light pruning can be done to encourage bushier growth.

Avoid heavy pruning, as it can reduce the number of blooms in subsequent years. Remove faded flowers to direct energy into growth.

Propagate Rhododendron ferrugineum from semi-hardwood cuttings taken in mid-summer. Use a rooting hormone and plant in a well-draining, acidic medium.

Keep the cuttings consistently moist and humid, ideally in a propagator or under a plastic cover. Rooting can take several months, followed by slow establishment.

Repot young Alpenrose plants every 2-3 years into a slightly larger container or into the ground if they have outgrown their pot. Use a peat-based, acidic potting mix. Ensure the new pot has good drainage.

Repotting is best done in spring or early autumn, avoiding periods of extreme heat or cold.