Answer: You didn't provide many details as to why you might have trouble keeping the soil moist so I'm not sure what to suggest. If the plants are indoors, you might try filling a water bottle with tap water, turning it upside-down and burying the shoulders of the bottle into the potting soil. The water will be drawn out as the soil dries out. This method works great for all houseplants if you're going away for less than a week. Hope this information is helpful.
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