Keep the soil consistently moist during the growing season, but avoid waterlogging. Reduce watering significantly in autumn and winter, allowing the soil to dry out slightly between waterings.

Ensure good drainage to prevent root rot.

Pruning is generally not required for Polypogon chilensis unless shaping or size control is desired. Remove any dead or damaged foliage as needed.

For tidiness, spent flower stalks can be cut back after flowering to prevent self-seeding if unwanted.

Polypogon chilensis can be propagated by seed sown in spring or early autumn. It also readily self-seeds.

Division of established clumps in spring or autumn is another effective method for propagation, ensuring each division has sufficient roots and shoots.

Repot young plants annually in spring as they grow. Mature plants can be repotted every 2-3 years or when they become root-bound. Use a well-draining potting mix.

Ensure the new pot is only slightly larger than the previous one.