During active growth and flowering, water thoroughly when the top few centimeters of soil feel dry, ensuring excess water drains away. Reduce watering significantly after flowering when foliage begins to yellow, leading into the dormancy period. During dormancy, water very sparingly, just enough to prevent the bulb from completely drying out, until new growth emerges.

After flowering, cut the spent flower stalk back to about 2-5 cm above the bulb, being careful not to damage any emerging leaves. Do not remove the leaves until they naturally yellow and die back, as they are essential for replenishing the bulb's energy for the next blooming cycle. Remove any dead or damaged leaves as needed.

Hippeastrum reginae can be propagated by offsets (bulbils) that form around the mother bulb. Carefully separate these smaller bulbs when repotting, ensuring each offset has some roots. Plant them in their own pots, just like mature bulbs. Seed propagation is also possible but takes several years to reach flowering size and may not produce true-to-type plants.

Repot Amaryllis bulbs every 2-3 years, preferably after dormancy or before new growth begins. Choose a pot only slightly larger than the bulb, allowing about 2-3 cm of space around it. Plant the bulb so that its top third is exposed above the soil line. Use fresh, well-draining potting mix and water sparingly until new growth is established.