Pelargonium denticulatum and its elegant leaf forms

This charming bushy shrub that favours slightly damp conditions usually under trees for shade in hot Mediterranean climates, has pinkish purple flowers with red or pink markings on the upper petals. The leaves are balsam scented, sticky and finely divided which is very similar to its cultivated form Pelargonium filicifolium, a cultivar where the leaves are more delicately finely divided and look very much like a fern in appearance. The flowers can also be quite unique to which the upper petals are split and look as if they are four petals, with reddish markings. Although it is believed that this form doesn’t flower so well as the P. denticulatum.

pelargonium filicifolium

Pelargonium radens also shows some similarities to pelargonium denticualtum, especially its leaf form, which has rose/lemon scented greyish green finely divided triangular leaves, but not quite as fine as P. denticulatum.

P. radens also has a somewhat softer texture, than p. denticulatum which tends to be more sticky. It also doesn’t have a bushy growth and prefers to trail though succulents and under taller plants.

pelargonium radens

P. Radens was originally called P. radula, but after much disarray of plant names during the late 1700s it was changed to P. denticulatum by Moore in the mid 1900s.

In modern times P. Radula is a hybrid derived from P. graveolens. This plant has deeply divided leaves with ragged edges and a rose/lemon scent. The flowers are small, light purple in colour with dark reddish purple on the upper petals.

Pelargonium radula leaf
Pelargonium radens leaf

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