Melampyrum sylvaticum prefers consistently moist soil but can tolerate short periods of dryness once established. Water regularly during dry spells, especially in warmer months. Avoid waterlogging, as this can lead to root rot. Aim for even moisture without saturation.

Pruning is generally not required for Melampyrum sylvaticum. Dead or damaged stems can be removed at any time to maintain appearance. Light trimming after flowering can help prevent excessive self-seeding if it becomes a concern.

Melampyrum sylvaticum can be propagated by seed, which often requires a period of cold stratification. Sow seeds outdoors in autumn or in a cold frame. It can also be propagated by division of established clumps in early spring.

Repotting is rarely necessary for Melampyrum sylvaticum, as it is often grown as a groundcover or in naturalistic settings. If transplanting is required, do so in early spring or autumn, ensuring the root ball is kept intact.