Herb Robert - Geranium robertianum

Common Name :	Herb Robert.
Binomial Name :	Geranium robertianum
Family :	Geraniaceae
Photo Taken :	Ireland

Botanical Identity

Geranium robertianum, commonly known as Herb Robert, is a species of flowering plant in the Geraniaceae family. It is native to Europe, parts of Asia, and North Africa, and has also naturalized in North America. This delicate wildflower is found in a wide range of habitats, from shady woodlands and hedgerows to rocky outcrops and garden edges. The origin of the name "Robertianum" is uncertain, though it is often linked to a medieval herbalist, Saint Robert, who was associated with medicinal uses of the plant.

Plant Description

Herb Robert is a low-growing annual or biennial, usually reaching heights of 20 to 40 cm, though it can trail or sprawl if growing in sheltered spots. It has deeply lobed, fern-like leaves that are often tinged reddish, particularly in cooler weather or poor soil. The stems are thin, reddish, and covered with fine hairs. Geranium robertianum prefers moist, shady environments but is highly adaptable, often thriving in disturbed areas and cracks in walls or paving.

Flowers and Fruit Characteristics

The plant produces small, five-petaled pink to magenta flowers, each about 1–1.5 cm in diameter. These dainty blooms appear singly or in pairs on slender stalks and are present from spring through autumn. Following pollination, the flowers develop into distinctive beaked seed capsules, which dry and split open explosively to disperse the seeds — a trait typical of geraniums. The plant is also known for its musky scent, especially when the leaves are crushed.

Uses and Traditional Significance

Historically, Geranium robertianum was widely used in folk medicine. It was believed to have properties beneficial for wound healing, anti-inflammatory relief, and as a mild astringent. The whole plant was used as a tea, poultice, or wash. In addition to its medicinal history, it is known to repel insects and has been used in natural gardening for this purpose. Today, it remains a valued plant for wildlife gardens, attracting bees and other pollinators while thriving in spots where little else grows.


Photos of this Herb Robert (Geranium robertianum) were taken from the following locations:
1) August 2019: Devil's glen, Wicklow, Ireland.


Written by Lonely Traveler,
For blog icflora.blogspot.com