Scientific: Ipomoea fistulosa (syn. Ipomoea carnea ssp. fistulosa)
Common: bush morning glory, morning glory tree bush
Family: Convolvulaceae
Origin: Tropical and subtropical New World plant from Argentina to Mexico.

Pronounciation: E-po-MO-ee-a fis-tu-LO-sa

Hardiness zones
USDA 9-11

Landscape Use: Flowering accent shrub for tropical and subtropical garden color in "old fashioned" tropical desert gardens.

Form & Character: Topical looking, upright, stiff, brittle, open shrubby.

Growth Habit: Dormant during winter changing to rapid growth during warm season growing in a single season to 10 to 15 feet in height if allowed to growth unrestricted, multiple basal stems.

Foliage/texture: Medium green, cordate to deltoid large leaves to 5 inches long with distinct petiole and prominent mid-vein, leaf margins slightly undulating; medium coarse texture.

Flowers & fruits: Flowers have fused petals, corolla extended, margins ruffled, white to pink, numerous terminal clusters; fruits are hairy

Seasonal color: Summer flowering accent.

Temperature: Summer heat-loving, but highly freese sensitive.

Light: Full sun.

Soil: Surprisingly tolerant of alkaline soils.

Watering: Established plants need copious summer irrigations to maintain a vigorous look. Can be induced into a deciduous habit with extended summer drought.

Pruning: Severe renewal pruning during winter.

Propagation: Seed, softwood cuttings.

Disease and pests: Orange blister beetle

Additional comments: Bush morning glory is a decidedly subtropical and heat-loving flowering shrub that is not commonly seen in contemporary Phoenix landscape designs. Medical studies from 1997 indicate that pollen of bush morning glory contain allergenic proteins. Bush morning glory is toxic to livestock.

Invasive Alert: Bush morning glory is cited as being invasive throughout the Pacific rim region and Hawaii. Bush morning glory is also invasive in Florida and is identified as being invasive in the United States by the USDA. It is however not invasive in arid regions of the desert Southwest.