Ipomoea tricolor

Ipomoea tricolor

Morning Glory

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Taxonomy

Common Names

Morning GloryMexican Morning Glory

Context

nativeRegion

Central and South America (primarily Mexico).

usdaZones

Grown as annual in zones 2–11; perennial in zones 10–12.

companionPlants

Sunflowers, Zinnias, Marigolds, Sweet Peas

culturalUses

Popular ornamental for trellises and fences; seeds historically used in traditional spiritual practices for their psychoactive properties.

Care

LightFull sun for optimal flowering.

WateringKeep soil evenly moist but not waterlogged; allow surface to dry between waterings.

SoilWell-draining, moderately fertile soil; tolerates a range of soil types.

FertilizerLight monthly feeding with balanced fertilizer during growing season if soil is poor.

HumidityPrefers moderate humidity but is fairly tolerant.

TemperatureThrives in warm temperatures, ideally 18–30°C (64–86°F); not frost tolerant.

HabitTwining annual vine with heart-shaped leaves.

Mature SizeUp to 2–4 meters (6–13 feet) in length.

Growth RateFast grower, can reach full size within one season.

BloomingProduces large, funnel-shaped flowers, mainly in summer to early autumn; blooms open in the morning.

DormancyAnnual lifecycle in most climates; can persist as perennial in frost-free areas.

MethodsSeed, Cuttings (less common)

DifficultyEasy

Best SeasonSpring after last frost

PruningMinimal; remove spent flowers to prolong bloom, trim to control size.

RepottingStart seeds in pots if desired; rarely repotted once planted outdoors.

Pests & DiseasesSusceptible to spider mites, aphids, and fungal leaf diseases; minimize overhead watering.

ToxicitySeeds are toxic if ingested; keep away from pets and children.

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