Calendula (pot marigold)
Calendula officinalis
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.
Climate fit: moderate (68/100)
Border
Edible
Pollinator
Container
Light
Full sun / Part shade
Water
Moderate water
Mature size
12-24" tall · 12" apart
Hardy in zones
2a-11b
brutally cold to nearly frost-free winters
AHS heat range
1-9
Plant range authored in AHS heat-zone terms.
Native in Illinois
No
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An open-pollinated insect-attracting composite — Missouri Botanical Garden and NC State Extension both document Calendula officinalis as attracting butterflies and pollinators.
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
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
✓
Well-suited today and still thriving 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...
Where this plant fits
Suitable across 45 ecoregions — 45 climate-resilient through 2070. Best matches first.
Appalachian mixed mesophytic forests
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Appalachian-Blue Ridge forests
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Arizona Mountains forests
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Atlantic coastal pine barrens
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Blue Mountains forests
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California coastal sage and chaparral
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Canadian Aspen forests and parklands
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Central Pacific Northwest coastal forests
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Central Tallgrass prairie
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Central-Southern Cascades Forests
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Similar plants
Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
Thymus vulgaris
Common thyme
A low woody herb for sunny edges, between pavers, and herb-garden borders with pollinator-friendly summer flowers.
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.
Stevia rebaudiana
Stevia
A tender perennial herb in the aster family (Asteraceae), grown for its remarkably sweet leaves — per the Missouri Botanical Garden PlantFinder the foliage contains glucoside compounds and tastes notably sweeter than sugar with no calories, which is why it is also called sweetleaf. Native to Brazil and Paraguay, it forms weak, floppy stems to 1-2 feet tall clothed in oblong, toothed leaves, with small showy white flowers in July and August. Winter hardy only in USDA zones 10-11; across most of North America it is grown as an annual or overwintered indoors, and leaves are best harvested before flowering.
Coriandrum sativum
Cilantro
A warm-weather annual of the carrot family grown in herb gardens for two distinct crops from one plant: the lacy, strong-scented foliage harvested young as cilantro, and the aromatic dried seed harvested as coriander. The plant bolts and flowers quickly in hot weather, throwing up showy white-to-pale-lavender umbels and a marked leaf dimorphism — broad scalloped lower leaves give way to fine, thread-like upper foliage on the flowering stems. Fast and easy from a direct sowing, it is best succession-planted for a steady leaf harvest before heat triggers bolting.
Mahonia repens
Creeping mahonia
A low, ground-hugging evergreen shrub of the Rocky Mountain West (also called creeping Oregon grape; NC State files it under the synonym Berberis repens). It spreads by underground stems into a holly-leaved mat 12-24 inches tall, with blue-green pinnate compound foliage that flushes bronze-to-purple-red in winter, fragrant yellow flower clusters in spring, and glaucous blue-black grape-like berries in summer. Tough, cold-hardy, and shade- and drought-tolerant once established — among the best evergreen native groundcovers for dry shade.
Narcissus (hybrid)
Daffodil
The mainstay bulb of the spring garden — a hardy, fall-planted perennial from Europe and North Africa whose flowers rise on leafless stems above strap-shaped foliage. Each bloom shows six petals (the perianth) ringing a central trumpet or cup (the corona) in white, yellow, orange, pink, or bicolor. Almost pest-free and reliably deer- and rabbit-resistant thanks to toxic alkaloids in every part of the plant.
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). Calendula (pot marigold) (Calendula officinalis). Retrieved 2026, June 24, from https://plotwright.com/plants/calendula-officinalis
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
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Lifecycle
Regional guidance
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Designer notes