Water deeply but infrequently, allowing the soil to dry out somewhat between waterings. Avoid waterlogging, as Protea cynaroides is susceptible to root rot.

Reduce watering significantly during cooler, dormant periods, especially if grown in a region with winter rainfall.

Prune lightly after flowering to remove spent flower heads and shape the plant. Avoid heavy pruning into old wood, as this can stimulate weak growth or prevent flowering.

Remove any dead or diseased stems promptly to maintain plant health and structure.

Propagate from semi-hardwood cuttings taken in late summer or early autumn. Use a rooting hormone and plant in a well-draining medium. Maintain high humidity and warmth.

Seed propagation is also possible but can be slow and requires specific stratification treatments.

Repot only when necessary, typically when the plant becomes root-bound. Use a well-draining, sandy or gritty potting mix, ideally low in nutrients. Avoid disturbing the roots excessively.

Choose a pot that allows for adequate drainage and room for growth.