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Silver Sage

Salvia argentea (SAL-vee-ah ar-jen-TAY-ah)

Family: Lamiaceae Non-native Herbaceous (1-3 ft)

Silver sage is a biennial in the mint family (Lamiaceae) native to the Mediterranean, southern Europe, and northern Africa. Grown specifically for its large, white, woolly leaves, which appear in a rosette 6 to 12 inches tall and wide the first year, the plant flowers in the second growing season and then dies after flowering. The species epithet is Latin for “silvery.” Plant silver sage in full sun to partial shade and in well-drained soil. Avoid wet soil, especially in winter. It declines with heat and summer rain. Cutting back the flower stalks when they appear may temporarily delay flowering and the death of the plant. It will self-seed in the garden if left to flower. It may also be propagated by removing lateral root shoots in the spring. It is resistant to drought and deer. Because of its low profile, silver sage’s best use is as a border or in a container. Its brightness works well in a nighttime garden, and its tactile quality makes it excellent for a children’s garden or sensory garden. It works well in cottage gardens or rock gardens. Insects, Diseases, and Other Plant Problems: Slugs and snails are pests. Stem and root rot, powdery mildew, rust, and leaf spot may also be problems. VIDEO Created by Elisabeth Meyer for "Annuals, Perennials, Vines, and Groundcovers," a plant identification course developed in partnership with Longwood Gardens. More information on Salvia .

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 59 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (1-3 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.

Often confused with Senecio candicans Angel Wings® 'Senaw'
Fills a similar niche Coleus argentatus Petunia x hybrida Silene coronaria
Native alternatives Salvia lyrata

Full plant profile

Growing Conditions
Plant type
Annual
Life cycle
Biennial
USDA zones
5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
Light
Full sun (6 or more hours of direct sunlight a day)
Soil texture
Clay; High Organic Matter; Loam (Silt); Shallow Rocky
Soil pH
Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage
Available space
Less than 12 inches; 12 inches-3 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 0 ft. 6 in. - 1 ft. 0 in. | Width: 0 ft. 6 in. - 1 ft. 6 in.
Growth rate
Medium
Maintenance
Low
Canopy layer
4 - Herbaceous (1-3 ft)
Form & Appearance
Habit / form
Prostrate; Spreading
Texture
Coarse
Leaf color
Gray/Silver; Green; White
Leaf type
Simple
Leaf arrangement
Opposite; Rosulate
Leaf shape
Ovate
Leaf margin
Crenate
Leaf feel
Soft; Velvety
Leaf value
Showy
Leaf size
> 6 inches long, > 6 inches wide
Hairs present
Yes
Leaf detail
Downy, felt like large (8 inches long and 6 inches wide) wrinkled leaves that form a rosette.
Flower color
White
Flower value
Showy
Flower form
Panicle
Flower shape
Tubular
Flower size
< 1 inch
Flower detail
Early summer, white, tubular, hooded flowers whorled on a 2- to 3-foot-tall inflorescence with candelabra branching.
Bloom time
Summer
Fruit color
Brown/Copper
Fruit type
Schizocarp
Fruit detail
Tiny, schizocarpic nutlets, typical for the genus.
Wildlife & Ecology
Native status
Non-native
Origin
Mediterranean, Southern Europe, Northern Africa
Food & Medicine
Fruit type
Schizocarp
Landscape Use
Landscape location
Container; Small Space
Landscape theme
Children's Garden; Cottage Garden; Drought Tolerant Garden; Garden for the Blind; Nighttime Garden; Rock Garden
Design feature
Border; Mass Planting
Garden tags
#showy leaves #white flowers #white leaves #nighttime garden #edging #border planting #hairy leaves #silver leaves #bedding plants #container plant #velvety #biennial #short lived
Problems & Resistance
Insect problems
Slugs & Snails on Ornamental Plants
Disease problems
Southern Bacterial Wilt on Herbaceous Ornamental Plants; Southern Blight of Herbaceous Ornamentals
Problems
Short-lived
Resistant to
Deer; Drought; Dry Soil
Particularly resistant to
Deer, drought, dry soil.
Propagation
Root Cutting; Seed

Planted at Hunnicutt

Nobody’s planted this one yet.