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Japanese Stonecrop

Hylotelephium sieboldii (hy-loh-teh-LEF-ee-um see-BOLD-ee-eye)

Family: Crassulaceae Non-native Groundcover (<1 ft)

Japanese stonecrop is a succulent, perennial groundcover that is native to Japan, where it can be found growing along rocky outcrops and cliffs. It is a member of the stonecrop family (Crassulaceae). The scientific name honors the German botanist Phillipp Franz von Siebold. It grows best in full sun to partial shade and in loam or sandy soil with very good drainage and a neutral or alkaline pH. Too much shade will result in weak, floppy plant growth. It has good drought tolerance, making it suitable for xeriscaping. When grown in a container, allow the soil to dry out before watering. Repot in spring. Propagate Japanese stonecrop by division, seed, or stem cutting. It grows 6 to 9 inches tall and 1 to 1.5 feet wide. A plant for all seasons, springtime brings blue-green foliage. The foliage will display pink edges through the hot summer months. As fall approaches and the flowers are in full bloom, the foliage will turn bright shades of orange and red, making a stunning sight. Use Japanese stonecrop in mass plantings, small groups, or borders in butterfly, children’s, drought-tolerant, or pollinator gardens. It attracts pollinators and songbirds. Also consider it for a recreational play area, on a slope or bank, or alongside a walkway or patio. Insects, diseases, and other plant problems: Slugs, snails, aphids, mealybugs, and some scale insects can visit this plant. Overwatering or wet sites can lead to root and crown rot. VIDEO Created by Elisabeth Meyer for "Annuals, Perennials, Vines, and Groundcovers," a plant identification course developed in partnership with Longwood Gardens. More information on Hylotelephium .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 66 attributes.

How it fits the guild

Guild layer 5 - Groundcover (<1 ft) Optimal soil pH Alkaline (>8.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Fills a similar niche Salvia rosmarinus Sedum Sedum acre

Full plant profile

Growing Conditions
Plant type
Edible; Ground Cover; Perennial
Life cycle
Perennial
USDA zones
3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Loam (Silt); Sand
Soil pH
Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Occasionally Dry | Very Dry
Available space
Less than 12 inches; 12 inches-3 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 0 ft. 6 in. - 0 ft. 9 in. | Width: 1 ft. 0 in. - 1 ft. 6 in.
Growth rate
Medium
Maintenance
Low
Canopy layer
5 - Groundcover (<1 ft)
Form & Appearance
Habit / form
Arching; Horizontal; Mounding
Texture
Fine
Leaf color
Green; Pink
Leaf type
Simple
Leaf arrangement
Whorled
Leaf margin
Entire
Leaf feel
Fleshy
Leaf value
Edible; Showy
Leaf size
< 1 inch long, < 1 inch wide
Hairs present
No
Leaf detail
This plant forms a perfect, circular mound of arching stems covered with fleshy, round, blue-green foliage in whorls of three. They are edged with a deep pink to reddish line. Turns pink in winter before dying.
Fall color
Pink
Flower color
Pink
Flower value
Showy
Flower shape
Star
Flower size
< 1 inch
Flower detail
In the fall, clusters of pink flowers form at the end of the stems.
Bloom time
Fall
Fruit type
Capsule
Fruit detail
Small capsules open to release tiny dark seeds.
Stem color
Green; Red/Burgundy
Stem detail
The ascending stem have a reddish tinge.
Wildlife & Ecology
Native status
Non-native
Origin
Japan
Wildlife value
Butterflies, flies, and bees are attracted to the flowers.
Attracts
Bees; Butterflies; Pollinators; Songbirds
Play value
Attractive Flowers; Attracts Pollinators; Textural
Food & Medicine
Edible parts
Leaves; Flowers; Stems
Fruit type
Capsule

Edibility

If causes low toxicity if eaten. However, when very young and tender, the stems and leaves can be eaten raw. Later, until they flower, they may be briefly cooked.

Uses (ethnobotany)

When planted in masses, makes a great ground cover in temperate locations.

Landscape Use
Landscape location
Container; Patio; Recreational Play Area; Slope/Bank; Walkways
Landscape theme
Asian Garden; Butterfly Garden; Children's Garden; Cottage Garden; Drought Tolerant Garden; Pollinator Garden; Rock Garden
Design feature
Border; Mass Planting; Small groups
Garden tags
#succulent #drought tolerant #full sun tolerant #well-drained soil #groundcover #children's garden #pollinator plant #evergreen #bird friendly #dry soils tolerant #partial shade tolerant #fall interest #playground plant #clay soils intolerant #rabbit resistant #butterfly garden #rock garden #low growing #trailing #container plant #hanging baskets #perennial #bee friendly #edible #poor soil tolerant
Problems & Resistance
Insect problems
Slugs & Snails on Ornamental Plants; Slugs and Snails Found on Flowers and Foliage
Disease problems
Southern Blight of Herbaceous Ornamentals
Other problems
White-Tailed Deer
Problems
Poisonous to Humans
Resistant to
Drought; Dry Soil; Poor Soil; Rabbits
Propagation
Division; Seed; Stem Cutting
Poison severity
Low
Poison parts
Bark; Flowers; Fruits; Leaves; Roots; Sap/Juice; Seeds; Stems
Poison symptoms
Unknown, but possibly gastrointestinal symptoms.
Toxic principle
Alkaloids sedine, sedamine, and others.
Contact dermatitis
No
Toxicity summary
Low severity poison; parts: Bark; Flowers; Fruits; Leaves; Roots; Sap/Juice; Seeds; Stems

Planted at Hunnicutt

Nobody’s planted this one yet.