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Morning glory

Morning glory

Ipomoea tricolor
A fast, twining annual vine from tropical America grown for the azure-blue trumpets that open at dawn and fade by afternoon, each marked with a white-to-golden-yellow star throat. Heart-shaped leaves clothe stems that climb 8 to 10 feet in a single season on any support. Showy and easy from seed, but every part - especially the seed - is poisonous if eaten, so site it away from where pets and children graze.
Climate fit: moderate (68/100)
Focal point
Structure
Container
Light
Full sun
Water
Moderate water
Mature size
8-10 ft tall · 12" apart
Life cycle
True annual (one season)
Bloom period
Summer / Fall
AHS heat range
4-12
Plant range authored in AHS heat-zone terms.
Native in Illinois
No

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Not edible.

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...

Similar plants

Browse lateral options with similar roles, light needs, size, or native-range overlap; these are not filtered for a better climate fit.
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Consistent moisture
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Focal point
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A Cape honeysuckle (Tecomaria capensis) shrub with arching evergreen foliage and clusters of slender orange tubular flowers.
Tecomaria capensis
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Moderate water
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Border
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Pollinator
Structure
Container
Loropetalum chinense in full bloom showing massed ribbon-like pink-white flowers and layered branching habit at Jardín Botánico La Concepción, Malaga
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Chinese Fringe Flower
Loropetalum chinense is an evergreen shrub native to woodlands and thickets across southern China, Japan, Taiwan, and adjacent parts of Southeast Asia, valued in gardens for its distinctive ribbon-like flowers and, in the popular purple-leaved forms, year-round burgundy foliage. It thrives in zones 7-9 as a bold structural shrub or hedging plant, blooming most heavily in late winter to early spring. The honest catch is its absolute dependence on acidic soil: even slightly alkaline pH triggers iron chlorosis, and in the Southeastern US a bacterial crown gall disease can cause rapid branch dieback and plant death, making site preparation and soil testing non-negotiable before planting.
Shrub
Full sun / Part sun / Part shade
Moderate water
Zones 7a-9b
Climate: narrow
Border
Focal point
Structure
Container
Chinese hibiscus (Hibiscus rosa-sinensis) - large funnel-shaped flower, long projecting staminal column, red throat, glossy toothed leaves.
Hibiscus rosa-sinensis
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A tender tropical evergreen shrub grown for its enormous, flamboyant flowers - broad funnels of red, pink, orange, yellow, or white, single or double, each with a long protruding column of fused stamens. Native to tropical Asia (a cultigen of such ancient cultivation that no certain wild origin survives), Hibiscus rosa-sinensis blooms continuously in warmth above glossy, dark green, evergreen leaves. Each flower typically lasts only a day, but a healthy plant opens fresh blooms in steady succession from spring through fall - and year-round in frost-free climates. It is the classic hibiscus of warm-climate landscapes and patio containers: heat- and humidity-loving, frost-tender, and hardy in the ground only in USDA zones 9a-11b.
Shrub
Full sun / Part shade
Consistent moisture
Zones 9a-11b
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Focal point
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Copperleaf (Acalypha wilkesiana) - close-up of a shoot tip of broad, toothed leaves in coppery maroon and green, each edged in pinkish red, in a botanic conservatory in Fort Wayne, Indiana.
Acalypha wilkesiana
Copperleaf
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Shrub
Full sun / Part shade
Consistent moisture
Zones 10a-11b
Climate: narrow
Focal point
Container
Structure
Border
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Firebush
Firebush (also called scarlet bush, hummingbird bush, and Mexican firecracker) is a fast-growing, evergreen, soft-stemmed shrub in the coffee family (Rubiaceae) and a Florida native: it grows wild from central Florida south through the Florida Keys, and on through the Bahamas, the Caribbean, Mexico, and Central America into South America as far as Argentina. In a frost-free landscape it forms a dense, spreading shrub of 6 to 12 feet, occasionally to 15 feet, with whorls of oval leaves that are red-hairy when young and speckled red or purple at maturity, reddish stems, and terminal clusters of slender, tubular, orange-red flowers 0.5 to 1.5 inches long nearly all year. Hummingbirds and butterflies work the flowers, and birds eat the small berries, which ripen from red to black and are edible. It is frost-tender: a freeze can kill it to the ground, it regrows from the roots through zone 9, and farther north it is grown as a 2 to 3 feet summer annual or container plant. Buy with care, because several non-native firebushes are sold under the same name: plants labeled 'African', 'Dwarf', 'Compacta', or 'Firefly' are often Hamelia patens var. glabra, a variety from southern Mexico to northern South America with smooth leaves and mostly yellow flowers, and 'Bahama firebush' is a different species, Hamelia cuprea. Florida's native form is Hamelia patens var. patens, the plant this record describes.
Shrub
Full sun / Part shade
Moderate water
Zones 9a-11b
Climate: narrow
Pollinator
Border
Structure
Focal point
Container

Educator packet

Plant packet
Morning glory educator packet
A fast, twining annual vine from tropical America grown for the azure-blue trumpets that open at dawn and fade by afternoon, each marked with a white-to-golden-yellow star throat. Heart-shaped leaves clothe stems that climb 8 to 10 feet in a single season on any support. Showy and easy from seed, but every part - especially the seed - is poisonous if eaten, so site it away from where pets and children graze.
Scientific name
Ipomoea tricolor
Plant type
annual
Hardiness
2a-12b
Light
full-sun
Moisture
moderate
Spacing
12"
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.

Sources & citations

Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Morning glory (Ipomoea tricolor). Retrieved 2026, October 9, from https://plotwright.com/plants/ipomoea-tricolor
Sources used for this record
This record is compiled from the sources below.
NC State Extension Gardener Plant Toolbox
University extension service
Plants of the World Online (POWO)
Botanical research database
GBIF
Botanical research database
USDA PLANTS Database
Government data source
Wikimedia Commons
Photo · CC BY-SA 3.0
Wikipedia: Ipomoea tricolor
Botanical research database
Plants For A Future
Botanical research database