Answer: Amaryllis are only repotted when they have been in the same pot for several years and have made enough offsets to become crowded, or if the soil has become depleted and needs to be refreshed. Ordinarily, the repotting would be done in the fall after they have rested and are about to be put into the blooming phase of active growth. However, it can also be done in the spring while the foliage is growing.
To repot it, use a good quality potting mix that is free draining, or use a soilless potting mix. Use a pot just an inch or so larger than the pot it is in now, because amaryllis like to be in a relatively small pot. Fill the bottom quarter or so of the new pot with fresh soil mix.
Tip the old pot upside down or on its side and cradle the top of the bulb in your hand, allowing the foliage to slip in between your fingers. Tap the pot and work the bulb loose, being careful not to damage the foliage. Loosen a few of the encircling roots and shake a bit of the old soil free.
Now set the bulb in the new pot, using enough soil beneath it to keep at least a third of the bulb above the new soil line. Wiggle the bulb gently to settle it into the soil, and gently work soil around the bulb and among the roots, tamping it lightly as you go to eliminate air pockets. Use a pencil or similar tool if there is not enough room for your fingers to reach inside the pot.
Water thoroughly to settle the soil and set the pot in a bright location where the foliage may continue to grow and refuel the bulb. Fertilize with a water soluble fertilizer according to the label instructions to encourage vigorous growth this summer.
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