Water regularly, allowing the soil to dry out slightly between waterings. Mexican Pricklypoppy prefers well-drained soil and is drought-tolerant once established. Avoid overwatering, as this can lead to root rot.

Reduce watering during the dormant winter months.

Pruning is generally not required for maintenance. Remove spent flower stalks to encourage reblooming and a tidier appearance.

If the plant becomes leggy or overgrown, it can be lightly pruned in late winter or early spring to encourage bushier growth.

Propagate from seeds sown directly outdoors in early spring after the last frost. Seeds germinate best with light exposure. Alternatively, sow seeds indoors a few weeks before the last expected frost.

Cuttings can also be taken from mature plants, but are less reliable.

Repotting is rarely necessary as Mexican Pricklypoppy is often grown as an annual or short-lived perennial and prefers not to be disturbed. If growing in a container and it becomes root-bound, repot in spring into a slightly larger pot with well-draining potting mix.