Water regularly, keeping the soil consistently moist but not waterlogged, especially during active growth. Allow the top 2-3 cm of soil to dry slightly between waterings.

Reduce watering in cooler months when growth slows. Good drainage is crucial to prevent root rot.

Deadhead spent flowers regularly to encourage continuous blooming and maintain an attractive appearance.

Pruning is generally not required for this annual, but you can lightly trim leggy stems to promote bushier growth if desired. Remove any yellowing or dead foliage promptly.

Propagate from seeds sown directly outdoors in early spring after the last frost, or start indoors 4-6 weeks prior. Seeds require light to germinate, so sow them on the soil surface.

They can also be propagated by cuttings taken in late spring.

As an annual, Nemophila menziesii typically does not require repotting. If grown in containers, they are best replaced each season.

If overwintered indoors or transplanted from nursery pots, use a well-draining potting mix and a pot with drainage holes.