Answer: Yes, you can gently lift and replant to rearrange them. Water it the day before you move it. Be careful to take all of the roots, press it into the new place "gently but firmly" and water to settle the soil around the roots. Next time, you might want to start them in individual pots, and then plant them where you want them in the box after they have sprouted. This way you can give them a head start indoors, too. If you need to search again, try looking for information about "tuberous begonia".
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