Water Amaranthus viridis regularly, keeping the soil consistently moist but not waterlogged, especially during dry periods. Allow the top inch of soil to dry out slightly between waterings.

Reduce watering frequency as the plant matures, but ensure adequate moisture for optimal growth and seed production.

Pruning Amaranthus viridis primarily involves pinching back the growing tips to encourage bushier growth and delay flowering, if desired. Remove any yellowing or diseased foliage promptly.

For harvesting, cut stems as needed, which naturally prunes the plant and stimulates further production.

Amaranthus viridis is easily propagated by seeds sown directly into the garden after the last frost, or started indoors a few weeks prior. Seeds germinate quickly in warm soil.

No special treatment is usually required, making it a straightforward plant to grow from seed.

Repotting is generally not necessary for Amaranthus viridis as it is often grown as an annual. If grown in containers and it becomes root-bound, repot into a slightly larger container in the spring.

Ensure the new pot has good drainage to prevent root rot.