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Jerusalem Sage

Phlomis fruticosa (FLOW-miss fru-ti-KOH-sah)

Family: Lamiaceae Non-native Shrub (3-15 ft)

The Jerusalem Sage is a native of Albania, Cyprus, East Aegean Island, Greece, Italy, Crete, Sardinia, Sicily, Transcaucasia, Turkey, and former Yugoslavia. It is a broadleaf evergreen, mounding, shrubby, and pubescent perennial. In USDA Zones 8-10, it will remain evergreen and in Zones 5-7 it is deciduous. The plant is a member of the Mint family or Lamiaceae. Its genus name Phlomis is Greek and translated means flame. This may be referring to the fact that in ancient times its leaves were used as lamp wicks. The species name, fruticosa, means shrubby and short, and this refers to its growth habit. The plant's height varies from 2-4 feet and spread 3-5 feet. It is a low maintenance plant with medium to rapid growth and prefers full sun to partial shade. If planted in the shade, it will have unattractive leggy stems. Well-drained dry to moist soil is required and it is adaptable to various soil types. The plant is propagated by softwood cuttings during the summer, root ball division in the spring, or sowing seeds in late spring. The leaves are wrinkled, gray-green in color, and have a soft wooly feel. The undersides of the leaves are white and are covered with fine hairs much like Lamb's Ear. The unscented flowers bloom in late spring to late summer and are a bright golden yellow. The flowers appear on spikes along the upper half of the stem tips and appear layered or tiered similar to the snapdragons. The flower's nectar attracts bees, butterflies, and hummingbirds. The plant is deer resistant, rabbit resistant, and drought tolerant. This is a good selection for a border, container, cottage garden, cut or dried flower garden, or mass planting. Insects, Diseases, and Other Plant Problems: The plant reportedly has no serious pests or diseases except for leafhoppers.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 65 attributes.

How it fits the guild

Guild layer 3 - Shrub (3-15 ft) Optimal soil pH Acid (<6.0); 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.

Full plant profile

Growing Conditions
Plant type
Shrub
Life cycle
Perennial
USDA zones
7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b
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
Clay; Loam (Silt); Sand
Soil pH
Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist | Occasionally Dry
Available space
6-feet-12 feet
NC region
Coastal; Piedmont
Mature size
Height: 2 ft. 0 in. - 4 ft. 0 in. | Width: 3 ft. 0 in. - 5 ft. 0 in.
Growth rate
Rapid
Maintenance
Low
Canopy layer
3 - Shrub (3-15 ft)
Form & Appearance
Habit / form
Erect; Mounding; Multi-stemmed; Open; Spreading
Texture
Coarse
Foliage
Broadleaf Evergreen; Deciduous
Leaf color
Gray/Silver; Green
Leaf type
Simple
Leaf arrangement
Opposite
Leaf shape
Lanceolate; Ovate
Leaf margin
Entire
Leaf feel
Smooth; Soft; Velvety
Leaf value
Fragrant
Leaf size
3-6 inches long, 1-3 inches wide
Hairs present
Yes
Leaf detail
The leaves are simple, opposite in arrangement, ovate to lanceolate in shape, grayish-green to green in color, and are about 5 inches long. On the undersides of the leaves, they are white and densely covered with fine hairs. They have a fuzzy, soft wooly, or felt-like texture with a pleasant scent.
Flower color
Gold/Yellow
Flower value
Good Cut; Good Dried; Showy
Flower form
Spike
Flower shape
Lipped; Tubular
Flower size
1-3 inches
Flower detail
Flowers from late spring to late summer. The golden yellow blooms are spiked and arranged in tiers or layers much like a snapdragon. They grow in whorls along the upper half of the stem and at the end of the stem. They are tubular, drooping flowers that form a cluster of around 20 blooms in short spikes. The flower has no fragrance.
Bloom time
Spring; Summer
Fruit color
Brown/Copper
Fruit type
Capsule
Fruit size
< 1 inch long, < 1 inch wide
Fruit detail
Brown fruit capsules appear in late summer and fall. The capsules are less than 1 inch long in size.
Stem color
Gray/Silver; Green
Stem detail
Multi-stemmed and covered with white hairs.
Wildlife & Ecology
Native status
Non-native
Origin
Mediterranean
Wildlife value
Bees, Butterflies, and Hummingbirds enjoy its nectar.
Attracts
Bees; Butterflies; Hummingbirds; Songbirds
Food & Medicine
Harvest time
Fall; Summer
Fruit type
Capsule

Uses (ethnobotany)

Leaves used as lamp wicks in ancient Greece

Landscape Use
Landscape location
Container; Lawn; Meadow
Landscape theme
Cottage Garden; Cutting Garden; Drought Tolerant Garden; Garden for the Blind
Design feature
Border; Small groups; Specimen
Garden tags
#yellow flowers #rabbit resistant #pollinator plant #cutting garden #border planting #showy flowers #low maintenance #drought tolerant #shrub #hairy leaves #deer resistant #full sun tolerant #cottage garden #perennial #th-touch
Problems & Resistance
Resistant to
Deer; Drought; Rabbits
Propagation
Division; Layering; Seed; Stem Cutting
Fire risk
low flammability

Planted at Hunnicutt

Nobody’s planted this one yet.