Real geraniums are hardy, well-behaved plants; unlike pelargoniums (often called geraniums). You don't have to pamper them in any way. You see a gap at the front of a border, think geranium, and plonk one in. If it's at the very front, you do well to choose a sprawling, small flowered kind, like G x riversleanum or asphodeloides, which will form a haze of white or pale pink over the edge of your lawn or path. Most other varieties can go a few inches further back. None of them …