Water thoroughly when the soil surface feels dry, but allow it to dry out slightly between waterings. Eremurus anisopterus prefers well-draining soil and can be susceptible to root rot if overwatered, especially during dormancy.

Cut back faded flower stalks after blooming to prevent seed formation and direct energy into the plant's root system. Remove any dead or damaged foliage in late autumn or early spring before new growth begins.

Ensure clean cuts.

Propagate by dividing mature clumps in early spring or autumn when dormant. Carefully separate the rhizomatous rootstock, ensuring each division has at least one healthy bud. Replant immediately in well-draining soil.

Repotting is generally not necessary for established Eremurus anisopterus plants, as they prefer undisturbed conditions. If division is required, repot the divisions into fresh, well-draining soil in their permanent location immediately after separating.