Sage (Salvia officinalis) - purple flowers, illustrated plant cardIllustration

Sage

Salvia officinalis

Sage blooms from May through June.

Bloom calendar
Bloom time
May–Jun
not yet checked
Hardiness
Zones 4–8
checked
Sun
Full sun
checked
Water
Low water
not yet checked
Mature size
20 in × 24 in
checked
Type
Herb
house classification

Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.

Growing Sage

Plant it in full sun. It prefers low water. It is hardy in USDA zones 4–8. Expect it to reach about 20 in tall and 24 in wide at maturity, in roughly 2 years (not yet checked).

Verification
What was checked

Mature height and spread, hardiness zones, sun and the trait tags were checked against named botanical sources for this plant. The bloom months and water need on this page were not, and each fact above says which. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.

See the 3 sources it was checked against

When to plant Sage

Plant Sage in early spring as soon as the soil is workable, or in early fall at least six weeks before your first frost, so roots establish in cool weather. Once settled, it blooms from May to June.

Month-by-month timing for your zone is on the planting calendar; if you garden near zone 6, the middle of this plant's hardy range, start with zone 6 in April. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.

How big does Sage get?

Illustration of Sage drawn to scale beside an adult20 intall5 ft 7 inan adult24 inwide
About 20 in tall and 24 in wide at maturity: knee-high beside an adult.

See Sage in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.

How far apart to plant Sage

Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.

Space Sage about 24 in apart, center to center, so each plant has room to reach its full width.

Plant them
24 in apart
Per 10 sq ft
about 3
4 by 8 ft bed
about 8

Add Sage to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.

Where these facts come from

Sage's height, spread, hardiness zones, sun and trait tags were checked against 3 published sources on July 29, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources.

How the checking works, and what each standard covers, is on the verified plants page.

Good to know about Sage

Curated from university extensions, botanic gardens and other primary sources, with the source named on every note. A note reports what its source says; where that differs from a fact above, the fact above is this entry's stored value, and its mark says whether it has been checked.

Safety

Cooking with the leaves is safe. The caution is separate and applies to concentrated sage essential oil and high-dose medicinal preparations, which are rich in neurotoxic thujone. per Regulatory Toxicology

Worth knowing

The same wet, heavy soil that rots the roots is what kills sage over winter. Sharp drainage, not fertility, is the one thing that fixes both. per NC State

Warm-zone hardiness varies

Most sources call sage hardy through zone 8, but Maryland Extension pushes the warm limit to 10b. In the hot, humid Deep South it can be short-lived. per NC State and University of Maryland

Gets woody; replace it

Sage turns woody and unproductive after about 3 to 5 years. Prune lightly each spring but never into bare old wood, which rarely resprouts. Replace or re-layer periodically. per Wisconsin

Colored cultivars are less hardy

The gray-green species is the toughest. Golden, purple and tricolor sages are reliable only to about zone 5 to 6; in cold gardens protect them or grow as annuals. per University of Maryland

Non-toxic and pet-safe

The ASPCA lists sage as non-toxic to dogs, cats and horses, and the leaves and flowers are edible; the musky flowers are best eaten only in small amounts. per ASPCA and NC State

Deer and rabbit resistant

Deer and rabbits leave sage alone. The strongly aromatic, camphor-rich, slightly fuzzy foliage deters browsing, though nothing is deer-proof under severe pressure. per NC State

What pairs well with Sage

Good companions share its growing conditions and add something it lacks: an earlier or later bloom, a lower carpet in front, or structure through winter.

  • Globe Thistle

    Globe Thistle

    Shares full sun and low water; blooms in midsummer as this one finishes; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

  • Blazing Star

    Blazing Star

    Shares full sun and low water; blooms in midsummer as this one finishes; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

  • Black-Eyed Susan

    Black-Eyed Susan

    Shares full sun and low water; blooms in midsummer as this one finishes; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

  • Lavender

    Lavender

    Shares full sun and low water; overlaps, then carries the display into late summer; both are strong pollinator plants; evergreen, so the bed keeps its shape through winter.

  • Switchgrass

    Switchgrass

    Shares full sun and low water; blooms in late summer, extending the bed's season; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

  • Sunflower

    Sunflower

    Shares full sun and low to moderate water; blooms in midsummer as this one finishes; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

  • Passionflower

    Passionflower

    Shares full sun and low to moderate water; blooms in midsummer as this one finishes; both are strong pollinator plants, and they feed in different months; climbs to 13 ft behind it, height without the footprint.

  • Grape Hyacinth

    Grape Hyacinth

    Shares full sun and low water; blooms in early spring, before this one opens; both offer pollinator forage, in different months; lower at 8 in, for the front of the border.

All 8 companion pairings for Sage →

Try Sage with its top companions in a garden →

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