Answer: It does seem troubling that similar plants receiving similar care do not respond in a similar manner. Even though both plants appear to be equal, one could be suffering from transplant shock and the other is not (or at least not yet). Or, soil drainage may not be identical in both planting sites. Since you've only just planted the brooms, they will both need a little time to get their roots established. Continue to water deeply once each week and give them both a few weeks to become established. I hope the sickly one will overcome its transplant shock and the healthy one will continue to thrive.
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