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Blue Snapdragon Vine Asarina antirrhiniflora

Previously known as:

  • Antirrhinum maurandioides
  • Maurandya antirrhiniflora
Phonetic Spelling
ass-ar-ee-na an-tee-rin-IF-lor-uh
Description

In its southwest US native habitat, the Snapdragon Vine can be found climbing on other plants as well as hanging from calcium carbonate rich bluffs in soils that are rocky. It will grow in a variety of soils, including clay, providing that the soil contains a mixture of loam.  Its cold hardiness zones of 9 and 10 are ideal for growing as a perennial.  In cooler zones, it can be grown as an annual or taken indoors when container grown.  Growing as a houseplant is an option for some, but that environment will lead to a reduction of flowers.  

In the garden, it does well growing up small trellises or gates as well has from a hanging planter.  It makes a good container plant. Ensure that moderate moisture and good drainage are provided.  It will spread, but is not overly aggressive.   Removing spent flowers and seed pods will prolong the flowering season.

Growing in full sunlight will increase flower production, however, too much heat can cause a reduction in flowering.  Some patience is required.  Keep watering, and as the temperatures lowers, you will see more blooms produced.  

The flowers resemble snapdragons, leading to this plant's common names.   They are axillary, growing in the axils of the leaf.  The upper lip is bi-lobed, while the lower lip has 3 lobes.   At close view, they may be referred to as showy, however, from a distance they appear insignificant.  

It can be grown as a flowering ground cover, each plant covering approximately 9 square feet (3'x3').  

The vines die back to the ground in the winter.  

Insects, Diseases, and Other Plant Problems:  No serious pest or disease issues.  Root rot can occur when the soil remains wet.  Powdery mildew and rust can occur when too much moisture is present.  Watering should be done from the base of the plant.  

 

See this plant in the following landscape:
Cultivars / Varieties:
  • 'Bride's White'
  • 'Joan Lorraine'
    Rich purple-blue flowers, most widely sold
  • 'Mystic Pink'
  • 'Pink Ice'
  • 'Red Dragon'
    Pinkish-red flowers
  • 'Shooting Stars Blue'
    Indigo blue flowers
  • 'Sky Blue'
    Deep purple-blue flowers.
  • 'Snow White'
    Nearly pure white flowers
'Bride's White', 'Joan Lorraine', 'Mystic Pink', 'Pink Ice', 'Red Dragon', 'Shooting Stars Blue', 'Sky Blue', 'Snow White'
Tags:
#deciduous#full sun tolerant#heat tolerant#salt tolerant#well-drained soil#trellises#vines#tender perennials#deer resistant#herbaceous vine#long bloom time#reseeds#native vine#poor soils tolerant#flowering vine#butterfly friendly#dry soils intolerant#drought intolerant#frost intolerant#container plant#native#butterflies#butterfly#tender
 
Cultivars / Varieties:
  • 'Bride's White'
  • 'Joan Lorraine'
    Rich purple-blue flowers, most widely sold
  • 'Mystic Pink'
  • 'Pink Ice'
  • 'Red Dragon'
    Pinkish-red flowers
  • 'Shooting Stars Blue'
    Indigo blue flowers
  • 'Sky Blue'
    Deep purple-blue flowers.
  • 'Snow White'
    Nearly pure white flowers
'Bride's White', 'Joan Lorraine', 'Mystic Pink', 'Pink Ice', 'Red Dragon', 'Shooting Stars Blue', 'Sky Blue', 'Snow White'
Tags:
#deciduous#full sun tolerant#heat tolerant#salt tolerant#well-drained soil#trellises#vines#tender perennials#deer resistant#herbaceous vine#long bloom time#reseeds#native vine#poor soils tolerant#flowering vine#butterfly friendly#dry soils intolerant#drought intolerant#frost intolerant#container plant#native#butterflies#butterfly#tender
  • Attributes:
    Genus:
    Asarina
    Species:
    antirrhiniflora
    Family:
    Plantaginaceae
    Life Cycle:
    Annual
    Perennial
    Recommended Propagation Strategy:
    Seed
    Stem Cutting
    Country Or Region Of Origin:
    Mexico and the south western United States
    Distribution:
    AZ, CA, FL, HI, MD, NM, NV, TX, UT
    Wildlife Value:
    Butterflies and hummingbirds are attracted to the flowers. Host plant for the Common buckeye (Junonia coena)
    Play Value:
    Attractive Flowers
    Attracts Pollinators
    Wildlife Larval Host
    Climbing Method:
    Tendrils
    Twining
  • Whole Plant Traits:
    Plant Type:
    Annual
    Ground Cover
    Perennial
    Vine
    Woody Plant Leaf Characteristics:
    Deciduous
    Semi-evergreen
    Habit/Form:
    Climbing
    Growth Rate:
    Rapid
    Maintenance:
    Low
    Texture:
    Medium
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Texture:
    Clay
    Loam (Silt)
    Sand
    Soil pH:
    Neutral (6.0-8.0)
    Soil Drainage:
    Good Drainage
    Available Space To Plant:
    12 inches-3 feet
    USDA Plant Hardiness Zone:
    9b, 9a, 10b, 10a
  • Fruit:
    Fruit Color:
    Brown/Copper
    Display/Harvest Time:
    Fall
    Fruit Type:
    Capsule
    Fruit Length:
    < 1 inch
    Fruit Width:
    < 1 inch
    Fruit Description:
    The seeds are spherical capsules.
  • Flowers:
    Flower Color:
    Purple/Lavender
    Red/Burgundy
    White
    Flower Inflorescence:
    Insignificant
    Solitary
    Flower Value To Gardener:
    Long Bloom Season
    Showy
    Flower Bloom Time:
    Fall
    Spring
    Summer
    Flower Shape:
    Tubular
    Flower Petals:
    4-5 petals/rays
    Flower Size:
    < 1 inch
    Flower Description:
    The small red-purple flowers have a white throat with pinkish lines. The side lobes flare outward, while the upper lobes are paired and flare upwards.
  • Leaves:
    Woody Plant Leaf Characteristics:
    Deciduous
    Semi-evergreen
    Leaf Color:
    Green
    Leaf Feel:
    Leathery
    Leaf Value To Gardener:
    Showy
    Leaf Type:
    Simple
    Leaf Arrangement:
    Alternate
    Leaf Shape:
    Deltoid
    Leaf Margin:
    Entire
    Lobed
    Hairs Present:
    No
    Leaf Length:
    1-3 inches
    Leaf Width:
    1-3 inches
    Leaf Description:
    The twining and wrapping leaves are arrow shaped. The lower leaves are rounded at the tip, while young leaves are pointed at the tip. Generally, the leaf arrangement is alternate. The lowers leaves can sometimes be opposite.
  • Stem:
    Stem Is Aromatic:
    No
    Stem Surface:
    Smooth (glabrous)
    Stem Description:
    Multi-branched climbing stems.
  • Landscape:
    Landscape Location:
    Container
    Hanging Baskets
    Patio
    Pool/Hardscape
    Rock Wall
    Slope/Bank
    Walkways
    Landscape Theme:
    Butterfly Garden
    Cottage Garden
    Native Garden
    Pollinator Garden
    Rock Garden
    Design Feature:
    Border
    Screen/Privacy
    Specimen
    Attracts:
    Butterflies
    Hummingbirds
    Pollinators
    Resistance To Challenges:
    Deer
    Heat
    Poor Soil
    Salt