I can hardly believe I grow 19 different ones in my quite small garden! (I've just been out to count). My favourites include 'Ann Folkard', magnificum (see yesterday's photograph), 'Rozanne', 'Patricia', psilostemnon, lancastriense, 'Max Frei' and 'Mavis Simpson'.
'Ann Folkard', pictured, spreads for yards around, weaving its way lightly through and over other plants. It has a very long flowering season and is always covered in bees. I adore the zingy magenta with the limey green of the young leaves.
The longest flowering has to be 'Rozanne' - a delicious blue, much more compact than 'Ann' - it flowers from June till October - amazing.
The little wild geranium robertianum - Herb Robert is allowed to grow in and out of things at the back of borders, and I grew geranium robertianum 'Celtic White' from seed. Very dainty it prettily sprinkles all over the place, and crossed with the red to produce a delightful pink form.
next posting opening the garden for charity