Field Eryngo is highly drought-tolerant once established. Water sparingly, allowing the soil to dry out completely between waterings. Overwatering can lead to root rot, especially in poorly draining soils.

Focus on deep watering infrequently rather than shallow, frequent applications.

Pruning is primarily for tidiness and to encourage reblooming. Deadhead spent flower stalks to prevent self-seeding if desired.

In late winter or early spring, cut back any dead or damaged foliage to ground level to allow for fresh new growth to emerge.

Field Eryngo can be propagated by seed sown in autumn or early spring, often requiring a period of cold stratification. Alternatively, division of established clumps can be done in early spring, though this species can be slow to establish and sensitive to root disturbance.

Repotting Field Eryngo is generally not recommended due to its deep taproot and sensitivity to root disturbance. It prefers to be left undisturbed once established in a suitable location.

If absolutely necessary, repotting should occur in early spring when the plant is still dormant.