Biting Stonecrop Sedum acre

Moss stonecrop, is a small, hardy, highly salt tolerant plant in the Crassulaceae (succulent) family native to Europe.  In nature, moss stonecrop is often found in sunny situations on limestone hills, rocks, and walls, especially near the sea. The genus name comes from the Latin word sedeo meaning to sit in reference to the habit of many of the sedums species to lounge out and sprawl over rocks.  

The plant has tiny fleshy conical green leaves that overlap eachother giving a scale like appearance.  Delicate star shaped yellow flowers hover above the leaves for most of the summer.  When grown outdoors, site for sun to part sun in well-drained soil. It seldom needs watering, but will grow in moist soils with good drainage.  If growing in a container, use coarse, well-drained soil, preferably a cactus mix.  The leaves tend to fall off easily; however, the fallen leaves can be used to propagate new plants.  

This plant tolerates maritime exposure, rocky and poor soils, and establishes itself quickly. The succulent leaves make it drought and dry soil tolerant and also make it attractive even through the winter months.  This plant is resistant to browsing by deer and rabbits.  

Moss stonecrop is low to the ground, mat forming, and spreads aggressively and can be used for ground cover in a sunny position; although it can overwhelm other plants of similar height.  Grown it as a houseplant with bright direct light from a window or grow light.  This species of Sedum, like many of its genus, tolerates only occasional foot traffic but can still make a suitable lawn alternative to areas with light traffic.  Mass plant it in hot areas, or rock gardens.

Insects, Diseases, and Other Plant Problems: No serious diseases or insect problems, except for occasional slugs and snails. Avoid wet or poorly drained conditions.  It can be weedy and aggressive in some situations.

VIDEO Created by Elisabeth Meyer for "Houseplants, Succulents, and Cacti", a plant identification course offered in partnership with Longwood Gardens.