Answer: Geraniums like full sunshine and soil that's neutral or slightly acidic. They prefer soil that's on the dry side, and they will bloom best if slightly pot-bound. If yours are planted in beds rather than containers, mulch them with peatmoss if your soil is alkaline, and water only once every 10-14 days. Geraniums are not heavy feeders, and too much nitrogen will result in green growth but few blossoms. Withhold fertilizer this season if you've been feeding them. They will surely be mature enough to bloom by next spring!
Q&A Library Searching Tips