There are a number of different forms of Erodium reichardii that are suitable for light shade. They need good drainage and should generally not be planted outside in Zones 8 and below. They grow on north facing slopes in the Balearic Islands in the Mediterranean. You might think of putting them between stepping stones, in small shallow containers, as an accompaniment to bonsai specimens or in the shade sections of the rock garden.
Erodiium reichardii 'Charm' This is the regular Erodiium reichardii. The cultivar name 'Charm' has been added by someone, but it is the same plant that has been available all along. It has pale pink flowers with darker pink veins.
This charming geranium for light shade comes originally from the UK where it was first introduced in 1989. It has pale green and very light creamy-yellow veined and splashed leaves and mid lavender flowers with a white eye. It forms a low mound about 12 x 18" when mature. It is very useful under shrubs and trees in the garden where it produced little splashes of artificial sunshine. It is cold hardy from USDA Zone 4-5 up to Zone 9.