Provide regular watering, especially during dry periods and the first growing season after planting, to establish a strong root system. Once established, Deutzia scabra is moderately drought-tolerant but benefits from consistent moisture, particularly when flowering. Avoid waterlogging, which can lead to root rot. Reduce watering in winter.

Prune immediately after flowering in late spring or early summer. Remove spent flower stems, dead or damaged branches, and any crossing or weak growth. Thin out older, less productive stems from the base to encourage new, vigorous growth and maintain an attractive, open shape. This practice promotes better air circulation and more abundant blooms next season.

Deutzia scabra can be propagated by softwood cuttings taken in late spring or early summer, or by hardwood cuttings in late autumn or winter. Rooting hormone can improve success rates. Layering is also an option. Seeds can be collected but may not come true to type.

For container-grown plants, repot every 2-3 years in early spring before new growth starts. Choose a pot one size larger with good drainage. Refresh the potting mix, gently loosen any circling roots, and replant at the same depth. Ensure adequate watering after repotting to help the plant settle.