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Plants that fill a similar niche:
Hemerocallis fulva Hemerocalis fulva
Phlox maculata Form in native habitat
Viola macloskeyi Viola macloskeyi
Linaria vulgaris has some common insect problems:
Aphids Found on Flowers and Foliage

Common Toadflax Linaria vulgaris

Previously known as:

  • Linaria linaria
Phonetic Spelling
lin-AR-ee-uh vul-GAIR-iss
This plant is an invasive species in North Carolina
Description

Butter and Eggs is a flowering perennial plant in the plantain family that is native to Eurasia. It has naturalized in North America and can be found in the Piedmont and mountain areas of North Carolina. Mid-summer to mid-fall the yellow and orange snapdragon-like blooms appear in dense clusters at the top of stems. Some colonies of plants bloom later than others. Many plants in a colony may fail to bloom. The leaves are thread-like and blue or gray-green. Each leaf tapers to a petiole, or stalk-like, base and is attached directly, or sessile. Bees are attracted to the flowers. The common name butter-and-eggs comes from the yellow and cream colors of the flower.

Butter and Eggs prefers full sun, good drainage, dry conditions, and gravelly or sandy soil. Under these conditions, this plant can spread aggressively because of the reduced competition from taller plants with wider leaves. It will tolerate soil with a high pH.

The root system consists of a long taproot and shallow rhizomes that spread in all directions. This plant usually forms clonal colonies by means of its rhizomes and has become invasive in several western states. Roots can extend out 10 feet from the mother plant giving rise to daughter plants along the way. This plant tends to show up in disturbed areas as along roads, railways or after fires as well as in fields, pastures or forest edges. It is difficult to eradicate and is not recommended for home landscapes.

The plant is often used as a source for cut flowers. Similar to Snapdragons, Butter and Eggs is often grown in children's gardens for the flowers which can be made to snap by squeezing them at the base of the corolla.

Diseases, Insect Pests, and Other Plant Problems:

Susceptible to aphids and powdery mildew.

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#showy flowers#invasive#upright form#spreading#rhizomes#colonizing#perennial#wildflower#branching#weedy
 
Cultivars / Varieties:
Tags:
#showy flowers#invasive#upright form#spreading#rhizomes#colonizing#perennial#wildflower#branching#weedy
  • Attributes:
    Genus:
    Linaria
    Species:
    vulgaris
    Family:
    Plantaginaceae
    Uses (Ethnobotany):
    Used as a yellow dye for centuries in Germany.
    Life Cycle:
    Perennial
    Recommended Propagation Strategy:
    Root Cutting
    Seed
    Country Or Region Of Origin:
    Europe, Siberia, Central Asia
    Distribution:
    Introduced to the United States from Alaska to Texas, Canada, South Africa, southern South America.
  • Whole Plant Traits:
    Plant Type:
    Perennial
    Wildflower
    Woody Plant Leaf Characteristics:
    Deciduous
    Habit/Form:
    Erect
    Prostrate
    Spreading
    Growth Rate:
    Rapid
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Soil Texture:
    Loam (Silt)
    Sand
    Shallow Rocky
    Soil pH:
    Alkaline (>8.0)
    Soil Drainage:
    Good Drainage
    Occasionally Dry
    NC Region:
    Mountains
    Piedmont
  • Fruit:
    Fruit Color:
    Brown/Copper
    Display/Harvest Time:
    Fall
    Fruit Type:
    Capsule
    Fruit Description:
    Each flower is replaced by a seed capsule that contains numerous small seeds. Each seed is brown and flattened, surrounded by a large papery wing with a small notch on one side. Assisted by their papery wings, these seeds are blown about by the wind.
  • Flowers:
    Flower Color:
    Gold/Yellow
    Orange
    Flower Inflorescence:
    Raceme
    Flower Value To Gardener:
    Good Cut
    Showy
    Flower Bloom Time:
    Fall
    Summer
    Flower Shape:
    Cup
    Lipped
    Flower Petals:
    4-5 petals/rays
    Flower Size:
    1-3 inches
    Flower Description:
    One inch yellow flowers with an orange throat blossom on a long, crowded, spike-like raceme. Flowers have a thin drooping spur at the base and a slight medicinal odor. The upper lip is two-lobed. Each flower consists of a tubular corolla with an upper and lower lip that is pale yellow and a long nectar spur at the end of the corolla that hangs downward. At the base of the flower, there is a small green calyx with 5 teeth and a short pedicel. Usually the underside of the corolla is cream-colored, in contrast to the bright orange-yellow of the palate.
  • Leaves:
    Woody Plant Leaf Characteristics:
    Deciduous
    Leaf Color:
    Gray/Silver
    Green
    Leaf Type:
    Simple
    Leaf Arrangement:
    Alternate
    Whorled
    Leaf Shape:
    Linear
    Leaf Margin:
    Entire
    Hairs Present:
    No
    Leaf Length:
    1-3 inches
    Leaf Width:
    < 1 inch
    Leaf Description:
    One to two and a half inch, slender, gray-green leaves, pointed at each end. Upper leaves are alternate and lower leaves are whorled. The alternate leaves are densely distributed all around the central stem, appearing to be opposite or whorled, and vary little in length.
  • Stem:
    Stem Is Aromatic:
    No
    Stem Surface:
    Smooth (glabrous)
    Stem Description:
    The central stem has a few hairs near its apex, but becomes glabrous or slightly woody near its base.
  • Landscape:
    Landscape Location:
    Container
    Naturalized Area
    Landscape Theme:
    Children's Garden
    Cutting Garden
    Attracts:
    Bees
    Butterflies
    Resistance To Challenges:
    Dry Soil
    Poor Soil
    Problems:
    Invasive Species