Water Alstroemeria amazonica regularly, ensuring the soil remains consistently moist but not waterlogged. Allow the top few centimeters of soil to dry out slightly between waterings, especially during warmer months.

Reduce watering in winter when the plant is less actively growing to prevent root rot.

Deadhead spent flowers regularly to encourage more blooms and maintain a tidy appearance. Cut back the faded flower stalks at their base.

After the main flowering period, you can trim back any overgrown or straggly stems to shape the plant and promote bushier growth next season.

Propagate Alstroemeria amazonica through division of established clumps in early spring or autumn. Carefully divide the rhizomes, ensuring each section has at least one growth bud.

Alternatively, sow fresh seeds in spring, though this method may result in plants that take longer to establish and flower.

Repot Alstroemeria amazonica every 2-3 years, or when the plant becomes pot-bound. The best time to repot is in early spring before new growth begins.

Use a well-draining potting mix and choose a pot that is only slightly larger than the current one to avoid excess moisture retention.