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

Allow the bulbs to dry out completely during dormancy to prevent rot.

Remove spent flower stalks after blooming to prevent seed formation and direct energy back to the bulb. Allow the foliage to yellow and die back naturally; do not cut it off prematurely as it is essential for replenishing the bulb's energy stores for the following year.

Large Camas can be propagated by separating offsets from the parent bulb after dormancy, usually in late summer or fall. Sow fresh seeds outdoors in fall or stratify them indoors before spring planting.

Division of established clumps is also an effective method.

Repotting is generally not necessary for Camassia leichtlinii unless they are grown in containers. If container-grown, repot every 2-3 years in late summer or early fall into fresh, well-draining potting mix.

Ensure the bulbs are planted at the correct depth.