Marsh Horsetail thrives in consistently moist to wet conditions. Keep the soil perpetually saturated, mimicking its natural boggy habitat. Never allow the soil to dry out, as this will stress the plant.

Water frequently, especially during warmer months, ensuring the pot is standing in a shallow tray of water.

Pruning is primarily for aesthetic purposes or to manage spread. Remove any dead, yellowed, or damaged stems at their base. If the plant becomes too dense or starts to invade unwanted areas, trim back the outer growth.

This can be done anytime during the growing season.

Marsh Horsetail is easily propagated by division or from spores. In spring, carefully divide mature rhizomes, ensuring each section has at least one bud.

Spores can be collected from mature fertile stems and sown on moist, sterile medium. It readily spreads via underground rhizomes.

Repotting is rarely necessary for Marsh Horsetail as it prefers crowded conditions and moist environments. If it outgrows its container or you wish to propagate, repot in spring.

Use a wide, shallow pot with a heavy base to prevent tipping, filled with water-retentive potting mix.