Astragalus genargenteus prefers well-drained soil and can tolerate drought once established. Water thoroughly when the top few centimeters of soil feel dry. Avoid overwatering, as this can lead to root rot.

Reduce watering significantly during winter dormancy.

Pruning is typically minimal for Astragalus genargenteus, focusing on removing dead or spent flower stalks after blooming to maintain a tidy appearance. Light shaping can be done in late winter or early spring before new growth emerges, but avoid heavy pruning.

Propagation is best achieved through seed sowing in early spring, often requiring stratification (cold treatment) for improved germination.

Cuttings can be taken from semi-hardwood in summer, but they can be challenging to root. Sow seeds in a well-draining medium.

Astragalus genargenteus generally dislikes frequent repotting and prefers to be slightly root-bound. Repot only when necessary, typically every 2-3 years, in early spring before active growth begins.

Use a gritty, well-draining potting mix.