Shrub Morning Glory or Bush Morning Glory
Ipomoea carnea subsp. fistulosa (Ipomoea fistulosa)
Shrub Morning Glory is an old-fashion dooryard plant in South Texas enjoying a resurgence of interest as a herbaceous perennial or summer annual in cooler climates. This coarse-textured plant can form a large upright shrub in a season; covered from mid-spring to frost with large lavender trumpet-shaped blossoms; flowers usually close in the afternoon unless the day is cloudy.
Plant Habit or Use:
Warm season annual, perennial, medium shrub, large shrub, tropical
Lavender, 2 inch to 3.5 inch long, profusely borne
Spring, summer, fall
Capsule, not ornamental.
6 ft to 8 ft in a season, taller in tropics
4 ft to 6 ft
Explanation of the Earth–Kind® Index breakdown
- Heat Tolerance: High Heat Tolerance
- Water Requirements: Medium Water Use
- Soil Requirements: Medium Soil Requirements
- Pest Tolerance: Medium Pest Resistance
- Fertility Requirements: Medium Fertility Requirements
USDA Hardiness Zones:
8, 9, 10, 11
Regions that intersect these hardiness zones:
Click image for enlarged map of USDA Hardiness Zones
Region A - Panhandle and High Plains• Region B - North and Central Texas• Region C - Northeast and East Texas• Region D - West Texas• Region E - Upper Rio Grande• Region F - Hill Country and Central Coast• Region G - Southeast Texas• Region H - Rio Grande Valley
Very adaptable taxa; responds well to fertilization; easily rooted from cuttings; herbaceous perennial in USDA zone 8 to 9a, woody shrub in 9b and warmer climates. Can escape cultivation and invade tropical wetlands; seeds require substantial scarification prior to germination.