Water Astraea gracilis thoroughly when the top 2-3 cm of soil feels dry. Avoid overwatering, as this can lead to root rot. Reduce watering frequency during winter months when the plant's growth slows.

Ensure good drainage to prevent waterlogging.

Prune Astraea gracilis in early spring to maintain its shape and encourage bushier growth. Remove any dead, damaged, or crossing branches.

Light pruning can be done throughout the year to manage size and improve air circulation. Use clean, sharp pruning tools.

Propagate Astraea gracilis from semi-hardwood cuttings taken in late summer or early fall. Dip the cut end in rooting hormone and plant in a well-draining potting mix. Keep the cuttings moist and provide bottom heat.

Rooting typically takes several weeks.

Repot Astraea gracilis every 2-3 years, or when it becomes root-bound. Use a well-draining potting mix. Choose a pot that is only slightly larger than the current one.

Repotting is best done in spring, just before new growth begins.