Water globe amaranth regularly, ensuring the soil remains consistently moist but not waterlogged. Allow the top inch of soil to dry out slightly between waterings, especially once established.

Reduce watering in cooler months to prevent root rot. Good drainage is crucial to avoid issues.

Pinch back young plants to encourage bushier growth and more flowers. Deadhead spent blooms regularly to promote continuous flowering and maintain an attractive appearance.

Pruning is minimal; focus on removing any dead or damaged foliage as needed throughout the season.

Globe amaranth is easily propagated from seeds sown indoors 6-8 weeks before the last frost or directly outdoors after the danger of frost has passed. Cuttings can also be taken in late spring or early summer and rooted in moist soil or water.

Repot young globe amaranth plants as needed when they become root-bound, typically in spring. Choose a pot that is only slightly larger than the current one to avoid overwatering.

Ensure the new pot has adequate drainage holes to prevent waterlogged soil.