Bennet's Root

Geum urbanum

L. Species

Geum urbanum
Stanislav Murashkin via iNaturalist — CC BY 4.0
Geum urbanum photograph 1 Geum urbanum photograph 2 Geum urbanum photograph 3 Geum urbanum photograph 4 Geum urbanum photograph 5 Geum urbanum photograph 6
Botanical name
Geum urbanum
Also known as
Avens, Bennet's Root, Bennet's-Root, Clove-Root, Cloveroot, Colewort, Herb Bennet, Herb-Bennet, St. Benedict's Herb, Wood Avens
Family
Rosaceae
Genus
Geum
Flowering period
May to August
Height
30–60 cm
Spread
20–40 cm
Hardiness
Fully hardy (RHS H7)
Reference
World Flora Online

How to grow Bennet's Root

Sunlight
Partial to full shade
Watering
Moderate
Soil
Most soils; tolerates dry shade
Soil pH
Acid, neutral or alkaline

Planting

This is a native woodland and hedgerow plant rather than a border ornamental, and in most gardens it arrives on its own. If you want it, it establishes easily in shade, including dry shade under shrubs and hedges. It is not showy: the yellow flowers are small and scattered.

Pruning

Cut the flowered stems off before the seedheads ripen if you want to stop it spreading. Otherwise it needs no attention.

Propagation

It seeds itself very effectively; the hooked seeds catch on clothing and animal fur. Division in spring or autumn also works but is rarely necessary.

Pests and diseases

Untroubled by most pests and diseases. Powdery mildew occasionally on the foliage.

Value to wildlife

The small flowers are used by hoverflies and small bees, and it provides useful low cover in shaded, semi-wild parts of a garden.

Notes

Most gardeners meet this plant as a weed rather than a choice, and it hybridises with ornamental geums such as Geum rivale, which can muddy a named cultivar over time. Remove the flowerheads before seed sets if you grow other geums nearby.

This guidance was researched and written by GardenDecoded — see our editorial policy for how guides are checked and reviewed.

Other names for this plant

These names have all been used for Geum urbanum but are no longer the accepted name. You may still meet them on old labels, in books, or in nursery catalogues.

Bernoullia media Caryophyllata officinalis Caryophyllata officinalis Caryophyllata urbana Caryophyllata vulgaris Geum ambiguum Geum caryophyllata Geum caucasicum Geum hederifolium Geum hirtum Geum hyrcanum Geum ibericum Geum ibericum Geum intermedium var. rubifolium Geum klettianum Geum klettianum Geum klettianum var. semperflorens Geum pseudomolle Geum rivale subsp. urbanum Geum robustum Geum roylei Geum rubifolium Geum salvatoris Geum sordidum Geum umbrosum Geum urbanum f. glandulosum Geum urbanum f. mauritanicum Geum urbanum f. typicum Geum urbanum subvar. australe Geum urbanum subvar. grandifolium Geum urbanum subvar. hirtum Geum urbanum subvar. opulifolium Geum urbanum subvar. orientale Geum urbanum subvar. robustum Geum urbanum subvar. simplicifolium Geum urbanum unranked hirtum Geum urbanum var. australe Geum urbanum var. grandifolium Geum urbanum var. hirsutum Geum urbanum var. hirtum Geum urbanum var. majus Geum urbanum var. mauritanicum Geum urbanum var. opulifolium Geum urbanum var. orientale Geum urbanum var. platylobum Geum urbanum var. platyolobum Geum urbanum var. rubifolium Geum urbanum var. simplicifolium Geum urbanum var. stenolobum Geum urbanum var. strictum Geum urbanum var. umbrosum Geum vicanum Geum vidalii Streptilon odoratum

Others in Geum

Geum × aurantiacum
Geum × catlingii
Geum × intermedium
Geum × macneillii
Geum × macranthum
Geum × pulchrum
Geum aequilobatum
Geum albiflorum

GardenDecoded is an educational gardening reference. Botanical data comes from World Flora Online and GBIF; growing guidance is our own. Always check a plant's toxicity and local invasiveness status before planting, and never eat or apply a plant based on this site alone.