Jovibarba spp.

beard houseleek

Crassulaceae Central and southeastern Europe

Attracts Pollinators Deer Resistant Drought Tolerant Container Friendly

HardinessZones 4–8

Overview

Jovibarba is a small genus of evergreen, rosette-forming succulents in the family Crassulaceae, native to the mountains of central and southeastern Europe. Often treated as close relatives of houseleeks (Sempervivum), the plants form tight rosettes of fleshy, pointed leaves 1-3 inches (2.5-8 cm) across that cluster into low, spreading mats. Leaves are green, often flushed red or bronze at the tips and edges, especially in cold or bright conditions. In the J. globifera group, new rosettes form as loosely attached rollers that detach and roll away to root nearby, while J. heuffelii multiplies by splitting the rosette itself. Mature rosettes send up a stout stalk 4-8 inches (10-20 cm) tall bearing bell-shaped, pale greenish-yellow flowers with fringed petals; the flowering rosette then dies, leaving its offsets to continue. The genus grows on rocky alpine slopes, cliffs, and screes in thin, gritty soil. Plants are fully frost-hardy and need full sun and sharp drainage, rotting in wet or shaded ground. The pale bell flowers separate Jovibarba from the pink, star-flowered true houseleeks.

Native Range

Jovibarba spp. is native to the mountains of central and southeastern Europe, from the Alps through the Carpathians to the Balkans. Plants grow on rocky slopes, cliffs, screes, and other thin, well-drained alpine soils.

Suggested Uses

Jovibarba spp. is grown in rock gardens, troughs, alpine pans, green roofs, and wall crevices, and in shallow containers among other hardy succulents. Its tight, frost-hardy rosettes suit cold-climate gardens where tender succulents fail.

How to Identify

Look for tight rosettes of fleshy, sharply pointed leaves, green flushed with red or bronze, forming low mats by offsets. In the roller group the offsets sit loosely and detach easily, rolling away to root. The stout flower stalk carries bell-shaped, pale greenish-yellow flowers with fringed petals, unlike the open pink stars of true houseleeks.

Appearance

Size & Dimensions

Height2" - 8"

Width/Spread6" - 1'

Colors

Flower Colors

Foliage Colors

Fall Foliage Colors

Bloom Information

Bloom Period

~3 weeks

Summer

Jovibarba spp. flowers in summer, generally June through August, though only mature rosettes bloom and many years pass before a given rosette flowers. The bell-shaped, pale greenish-yellow flowers are held in a tight cluster on an upright stalk. After flowering, that rosette dies and is replaced by its surrounding offsets.

Detailed Descriptions

Foliage Description

green flushed red or bronze

Growing Conditions

Sun Requirements

SunFull Sun

Requires 6-12 hours of direct sunlight daily

• Full Sun: 6+ hours of direct sunlight

• Partial Shade: 3-6 hours of direct sunlight

• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range6.0 - 7.5(Neutral)

357912

Soil Types

sand rocky loam

Drainagewell drained

Water & Climate

Water Needs

Very Low

Frost Tolerance

hardy

Time to Maturity

2-3 years

Drought Tolerance

Drought tolerant when established

Care & Maintenance

Care Guide

Grow Jovibarba spp. in full sun on gritty, sharply drained soil, including troughs, crevices, and rock gardens. Water sparingly; established plants tolerate drought and rot in damp, shaded, or poorly drained ground. No feeding is needed, as lean conditions keep the rosettes tight and well-colored. Remove the dead rosette after flowering, leaving the offsets to fill the gap. The plants are fully hardy, surviving hard frost and snow cover without protection. Wet winters are more damaging than cold ones.

Pruning

Jovibarba spp. needs no pruning. Pull away the spent rosette after it flowers and dies, and lift and replant crowded offsets in spring or summer to renew a colony. Detached rollers can be set on gritty soil, where they root readily.