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Description

Violet trumpet vine grows into a medium to large size evergreen vine with glossy green foliage and colorful lavender flowers. It is a fast growing vine with clinging tendrils, with stems capable of growing 15-25 ft. and longer. Leaves grow 2-3 in. long and produce deep shade when grown on a trellis or arbor. Heavy clusters of showy trumpet-shaped flowers grow 2-3 in. long and occur in spring.

This colorful vine comes from Argentina and southern portions of Brazil. It shows widespread adaptation to the Inland Empire, particularly when grown in rich soils and with regular water. It can tolerate cold temperatures to 20°F, and adapts to valley heat when planted in partial shade.

Violet trumpet vine has a combination of foliage and flowering characteristics that make it highly useful in both residential and commercial plantings, and in combination with the Crape Myrtle and Chitalpa plant palettes. It can be trained and pruned to fit smaller spaces or be left to cover larger overhead structures, fences and banks. It is a robust plant that adapts to many conditions and is widely valued for its generous flower display and rich foliage.

Water Needs

The Violet trumpet vine grows best without moisture stress. Regular irrigation is recommended throughout the year. The chart shown below provides a baseline guide to the monthly irrigation schedule and volume of supplemental water needed to maintain healthy growth throughout the average year. The high and low range of moisture indicates it can grow with varying amounts of water; higher amounts of water will result in stronger springtime flowering performance and better summer foliage character.

Irrigation Schedule and Graph

Moderate Water Use Plants

Irrigation Schedule 4

  Jan* Feb* Mar* Apr May Jun Jul Aug Sep Oct Nov* Dec*
Runs per Month 0x to 3x 0x to 3x 0x to 3x 2x to 3x 2x to 3x 3x to 4x 3x to 4x 3x to 4x 2x to 3x 2x to 3x 0x to 3x 0x to 3x
Inches per Run 1" 1" 1" 1" 1" 1" 1" 1" 1" 1" 1" 1"
 
Inches per Month 0" to 3" 0" to 3" 0" to 3" 2" to 3" 2" to 3" 3" to 4" 3" to 4" 3" to 4" 2" to 3" 2" to 3" 0" to 3" 0" to 3"

Range of supplemental summer water: 17"-24"
Range of supplemental winter water: 0"-15"

 
0"-3"
0"-3"
0"-3"
2"-3"
2"-3"
3"-4"
3"-4"
3"-4"
2"-3"
2"-3"
0"-3"
0"-3"
  Jan* Feb* Mar* Apr May Jun Jul Aug Sep Oct Nov* Dec*
For more information on how to use this Irrigation Schedule and Graph, follow this link.

For information how to calculate your irrigation system’s schedule and precipitation rate, please follow this link.

Plant Properties

Plant Type: Vine
Foliage Character: Evergreen
Habit: Trailing, Robust, Climbing
Growth Rate: Fast
Height: 15 ft. - 25 ft.
Width: 15 ft. - 25 ft.
Water Needs: Moderate 4
Foliage Color: Medium green
Flower Color: Lavender
Flower Season: Spring
Soil Adaptations: Well-draining soil, Loam
Exposure Adaptations: Morning sun, Frost, All day sun
Function: Screening, Overhead structures, Hummingbird plant, Foundations, Flowering accent plant, Espalier, Banks

Associations

Plant Palettes

Plant Lists