Perennial Honesty thrives with consistent moisture, especially during its active growing season and dry spells. Water deeply when the top few centimeters of soil feel dry, ensuring good drainage to prevent root rot. Reduce frequency in cooler, dormant periods.

Deadhead spent flowers promptly to prevent unwanted self-seeding and to maintain a tidy appearance. After the flowering period or once the distinctive seed pods have been harvested or faded, cut back the entire plant to about 15-20 cm from the ground. This encourages fresh growth and helps the plant conserve energy for the following season.

Perennial Honesty is readily propagated by seed. Sow seeds directly outdoors in autumn for spring germination, or in early spring after the last frost. It also self-seeds freely, so young seedlings can be carefully transplanted. For established clumps, division in early spring or autumn is an effective method, ensuring each division has a healthy root system and several shoots.

As a perennial typically grown in garden beds, Lunaria rediviva rarely requires repotting. However, if cultivated in a container, repotting every 2-3 years is advisable to refresh the soil and provide ample space for root expansion. Choose a pot that is only slightly larger than the previous one, ensuring it has good drainage, and use a high-quality, well-draining potting mix.