Biting Stonecrop

Sedum acre

L. Species

Sedum acre
Richard Fuller via iNaturalist — CC0 1.0
Sedum acre photograph 1 Sedum acre photograph 2 Sedum acre photograph 3 Sedum acre photograph 4 Sedum acre photograph 5 Sedum acre photograph 6
Botanical name
Sedum acre
Also known as
Biting Stonecrop, Gold Moss Stonecrop, Golden Carpet, Goldmoss Stonecrop, Mossy Stonecrop, Mountain-Moss, Orpin Acre, Stonecrop, Wall Pepper, Wall-Grass, Wall-Pepper
Family
Crassulaceae
Genus
Sedum
Flowering period
June to July
Height
5–10 cm
Spread
30–60 cm
Hardiness
Fully hardy (RHS H7)
Reference
World Flora Online

How to grow Biting Stonecrop

Sunlight
Full sun
Watering
Very low; thrives on drought
Soil
Poor, sharply drained, gritty or sandy
Soil pH
Neutral to alkaline

Planting

Plant in spring or summer into gravel, wall crevices, the top of a dry stone wall, a sink garden or a green roof. It needs no soil depth to speak of and will fail in rich moist ground. Simply pressing pieces of stem onto grit is usually enough to establish it.

Pruning

No pruning needed. Pull out unwanted spreading growth by hand where it strays.

Propagation

Extremely easy: detached shoots root wherever they land. Scatter stem pieces on gritty compost or press them into gaps in spring or summer.

Pests and diseases

Essentially trouble-free. It rots only where drainage is poor.

Value to wildlife

The mass of small yellow flowers is worked by bees, hoverflies and small solitary bees, and it is a mainstay of wildlife green roofs.

Notes

It spreads readily and can colonise paths, gravel and neighbouring alpines, so keep it away from small choice plants. The common name refers to the acrid taste of the sap; wash your hands after handling and check its toxicity before growing it where children have access.

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 Sedum acre but are no longer the accepted name. You may still meet them on old labels, in books, or in nursery catalogues.

Sedum acre subsp. neglectum Sedum acre var. robustum Sedum drucei Sedum erectum Sedum glaciale Sedum krajinae Sedum neglectum Sedum procumbens Sedum robustum Sedum wettsteinii Sedum zlatiborense

Others in Sedum

Sedum × battandieri
Sedum × erraticum
Sedum × patrickii
Sedum abchasicum
Sedum acre subsp. majus
Sedum actinocarpum
Sedum adolphii
Sedum aetnense

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.