Water consistently during the growing season, ensuring the soil remains moist but not waterlogged. Reduce watering significantly as the foliage begins to yellow and die back in late spring or early summer.

Allow the soil to dry out during the dormant period.

Pruning is generally not required for Erythronium americanum. Remove any dead or yellowing foliage in late spring or early summer after the plant has completed its growth cycle. This helps direct energy back to the bulb.

Propagate by dividing established clumps of bulbs in late summer or early fall, after the foliage has completely died back. Seeds can be sown fresh in fall, but germination is slow and may take several years.

Repot Erythronium americanum bulbs every 3-5 years, or when they become overcrowded. This is best done in late summer or early fall when the plants are dormant.

Use a well-draining potting mix, and plant bulbs at a depth of about 5-7 cm.