Small Orange Cactus Black Spots After Vacation: Overwatered, Let Dry, Watch Spots

6-Month Orange Cactus, 3", Vacation 1.5 Months, Watered at 1 Month—Fine on Return, 2 Weeks Later Black Spots

Owner thought underwatered, added water. Asks help.

Greg: dry out soil. If spots grow, plant lost. At 3", too small for cuttings. Cacti must dry between waterings.

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