Answer: I like to feed my containerized plants frequently with a half-strength dilution of a complete fertilizer. Geraniums can be fed this way, too, throughout the growing season, whether or not they're in bloom. Since plants in containers are watered more frequently than those in the ground, they need to be fed more frequently, too. Feed your geraniums about every 3 weeks with a diluted liquid fertilizer and they'll keep right on blooming all summer long.
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