I have to make a confession. I love these plants because they can survive in our world of neglect. We have so many plants to grow for sale, that we have little time left for landscaping or garden plants. If scented geraniums thrive is this brutal environment; little water, poor soil, nearly total neglect - then your plants will look terrific! (Note: When you take them out of their pot, you should see a large tap root. This is the root that enables this plant to survive drought.)
There are so many varieties and frankly, I can barely tell them apart - aromatically - after a while. The mint geraniums are obvious, the apple and nutmeg are unique, the lemon is apparent; but all the rest smell like rose to me. Most are in the rose geranium category; Attar of Rose, Capitatum, Clorinda, Velvet Rose, Rober's Lemon Rose, Little Gem, and so forth. It really doesn't mater - they all smell good! Find ones that you like the looks of. Some are very weird and, of course, those are the ones I really like. Gooseberry is chaotic and fascinating. Strawberry can be gangly and arrogant; yes, arrogant. Fingerbowl Lemon is upright and parsimonious - and one of the old Victorian types. Put the leaves in fingerbowls on your table to scent the water that refreshes greasy fingers. French Lace, great name! Not one of the prettiest but nice variegated leaf and sweet little pink flowers. Apple is nice; a satin finish to the leaf and slight, ever so slight, apple scent. Nutmeg is overwhelmed by its own little but abundant flowers. And I will always love the Peppermint Tom with its huge fuzzy leaves, tiny flowers and robust fragrance. (One of our customers told me she throws a leaf in the dryer.)
There has to be room for one, two or more scented geraniums in your garden. Bees love them; hummingbirds are interested, butterflies stop by, kids like to wallow in them and you can always crush the leaves into sugar to spice it up. Put them in containers, plant them amidst the herbs in your garden, fill a backyard slope, or keep one on your window sill. You will enjoy these plants; large or small.