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Sweet marjoram

Sweet marjoram

Origanum majorana
A tender Mediterranean culinary herb — a bushy little sub-shrub with reddish square stems and rounded, gray-green aromatic leaves that grows in an upright mound to 1-2 feet. Tiny white-to-pale-pink flowers open from knot-like bud clusters in summer, the trait behind the alternate name "knotted marjoram." Hardy only in USDA zones 9-10; everywhere colder it is grown as a warm-season annual or a pot herb brought in before frost.
Climate fit: narrow (24/100)
Edible
Container
Border
Light
Full sun
Water
Low water
Mature size
8-24" tall · 12" apart
Hardy in zones
9a-10b
frosty to mild winters
AHS heat range
6-12
Plant range authored in AHS heat-zone terms.
Native in Illinois
No
A classic culinary herb — the sweet, milder, more floral cousin of oregano.

Cold hardiness

These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Won't grow here
Zone 7a
Plotwright
0°F to 5°F
Won't grow here
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
Out of range today and still out of range in 2050.

Heat tolerance

Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...

Plant this, not that

Better fit for this place
For Chicago, IL, these are replacement suggestions: similar plants with a stronger hardiness fit now and/or in 2050.
Calendula officinalis
Calendula (pot marigold)
An Old World cottage-garden annual grown for daisy- to chrysanthemum-like flowerheads (3-4 inches across) in bright yellow through deep orange, often with a contrasting darker center disk. In cool climates it blooms over a long summer-to-fall window; in hot summers it tends to languish and may need a midseason cutback to rebloom. The somewhat bitter flowers and lance-shaped aromatic leaves are edible, and the petals lend color to soups, rice, and baked goods.
Herb
Full sun / Part shade
Moderate water
Zones 2a-11b
Climate: moderate
Border
Edible
Pollinator
Container
Better fit now and in 2050
Now: well-suited
2050: well-suited
Satureja hortensis
Summer savory
A fast, bushy annual culinary herb in the mint family (Lamiaceae), native from southeastern Europe to western Asia. NC State Extension describes an erect, multi-stemmed plant about 1.5 feet tall and 1-3 feet wide, with linear, gland-dotted, aromatic dark-green leaves and small lilac, pink, or white summer flowers. It grows rapidly — harvestable within a couple of months of sowing — and is prized for its mild, slightly peppery flavor. Grown as a warm-season annual, it wants full sun and sharp drainage and does poorly in damp soil or shade.
Herb
Full sun
Low water
Zones 2a-11b
Climate: moderate
Edible
Container
Border
Better fit now and in 2050
Now: well-suited
2050: well-suited
Thymus vulgaris
Common thyme
A low woody herb for sunny edges, between pavers, and herb-garden borders with pollinator-friendly summer flowers.
Herb
Full sun
Low water
Zones 5-9
Climate: moderate
Edible
Border
Pollinator
Container
Better fit now and in 2050
Now: well-suited
2050: well-suited
Artemisia dracunculus 'Sativa'
French tarragon
French tarragon is the culinary clone of Artemisia dracunculus, grown for the pungent anise-like flavor and aroma of its narrow, glossy green leaves — the defining herb of béarnaise sauce and classic French fines herbes. It is a shrubby, rhizome-spreading perennial that rarely flowers and sets effectively sterile seed, so it is propagated only by cuttings or division rather than from seed. Unlike its wild parent species and the inferior Russian tarragon, this 'Sativa' selection holds the true tarragon flavor.
Herb
Full sun
Low water
Zones 5a-8b
Climate: narrow
Edible
Border
Container
Better fit now and in 2050
Now: well-suited
2050: well-suited

Similar plants

Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Calendula officinalis
Calendula (pot marigold)
An Old World cottage-garden annual grown for daisy- to chrysanthemum-like flowerheads (3-4 inches across) in bright yellow through deep orange, often with a contrasting darker center disk. In cool climates it blooms over a long summer-to-fall window; in hot summers it tends to languish and may need a midseason cutback to rebloom. The somewhat bitter flowers and lance-shaped aromatic leaves are edible, and the petals lend color to soups, rice, and baked goods.
Herb
Full sun / Part shade
Moderate water
Zones 2a-11b
Climate: moderate
Border
Edible
Pollinator
Container
Thymus vulgaris
Common thyme
A low woody herb for sunny edges, between pavers, and herb-garden borders with pollinator-friendly summer flowers.
Herb
Full sun
Low water
Zones 5-9
Climate: moderate
Edible
Border
Pollinator
Container
Satureja hortensis
Summer savory
A fast, bushy annual culinary herb in the mint family (Lamiaceae), native from southeastern Europe to western Asia. NC State Extension describes an erect, multi-stemmed plant about 1.5 feet tall and 1-3 feet wide, with linear, gland-dotted, aromatic dark-green leaves and small lilac, pink, or white summer flowers. It grows rapidly — harvestable within a couple of months of sowing — and is prized for its mild, slightly peppery flavor. Grown as a warm-season annual, it wants full sun and sharp drainage and does poorly in damp soil or shade.
Herb
Full sun
Low water
Zones 2a-11b
Climate: moderate
Edible
Container
Border
Artemisia dracunculus 'Sativa'
French tarragon
French tarragon is the culinary clone of Artemisia dracunculus, grown for the pungent anise-like flavor and aroma of its narrow, glossy green leaves — the defining herb of béarnaise sauce and classic French fines herbes. It is a shrubby, rhizome-spreading perennial that rarely flowers and sets effectively sterile seed, so it is propagated only by cuttings or division rather than from seed. Unlike its wild parent species and the inferior Russian tarragon, this 'Sativa' selection holds the true tarragon flavor.
Herb
Full sun
Low water
Zones 5a-8b
Climate: narrow
Edible
Border
Container
Fragaria × ananassa
Garden strawberry
The cultivated strawberry of grocery shelves and home gardens — a low, stoloniferous herbaceous perennial of hybrid origin (a cross of the South American Fragaria chiloensis and the North American F. virginiana). Dense mounding rosettes of toothed, three-parted leaves carry loose clusters of five-petaled white flowers in spring, which ripen into the familiar cone-shaped red aggregate fruits studded with seed-like achenes. Plants run on above-ground stolons that root at the nodes to form new plantlets, so a single planting knits into a patch.
Perennial
Full sun
Consistent moisture
Zones 4-9
Climate: moderate
Edible
Border
Container
Anthriscus cerefolium
Chervil
A fast, fine-textured cool-season culinary annual in the carrot family (Apiaceae), native to the Middle East, Russia, and the Caucasus and now grown worldwide. NC State Extension describes an erect, spreading plant about 1-2 feet tall with light green, feathery, finely divided (tripinnate) leaves — like a more delicate parsley — and a mild aniseed scent. Small white five-petaled flowers open in saucer-shaped umbels 1-2 inches across in spring and summer. It is generally grown as an annual (occasionally biennial in milder areas), prefers cool weather in moist, well-drained soil, and is a classic component of French fines herbes, prized for a delicate flavor best used fresh.
Herb
Full sun / Part shade
Moderate water
Zones Annual (biennial in mild winters)
Edible
Container
Pollinator

Sources & citations

Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Sweet marjoram (Origanum majorana). Retrieved 2026, June 24, from https://plotwright.com/plants/origanum-majorana
Sources for every fact
Every fact on this page traces to a source. 18 fields cited - 18 source-backed.
Missouri Botanical Garden PlantFinder
Botanical research database
Backs 17 fields
Identity
Summary
Plant type
Light
Moisture
Hardiness
Heat zone
Size
Spacing
Habit
Design roles
Seasonal interest
Growth stages
Lifecycle
Regional guidance
Success tips
Designer notes
Wikimedia Commons
Photo · CC BY-SA 4.0
Backs 1 field
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NC State Extension Gardener Plant Toolbox
University extension service