Details of...
Scientific Name: Lamium purpureum
Pronunciation: LAY-mee-um pur-PUR-ee-um
Common Name: purple deadnettle
Family Name: Lamiaceae
Plant Type: Invasive plant, Annual
Key ID Features: Invasive ground cover when escaped from containers; leaves opposite, mostly ovate, toothed, pubescent, and variegated with silver; yellow florets in whorls at nodes.
Course(s): not used (on campus)

Habit: Spreading
Form: Creeping / Mat-like
Texture: Medium - fine
Mature Size:
Height:0.4 - 0.7m
Growth Rate:Fast
Origin: Europe
Hardiness Rating: Zone 4: (-34 to -29 C)
Exposure: Deep shade, Filtered shade, Part sun/part shade
Soil/ Growing Medium: Humus rich, Well-drained
Water Use: Low, Moderate
Landscape Uses: Container planting
Additional Info: Google
purple deadnettle
Leaf Morphology: Glossary
Form: Simple
Arrangement: Opposite
Texture/ Venation: Heavily veined, Pinnate venation, Soft flexible
Surfaces: Pubescent, Rugose
Colour in Summer: Silver / Grayish, Green
Leaf(let) Terms:
Shapes: Deltoid, Ovate, Rhomboidal
Apices: Acute
Bases: Rounded
Margins: Ciliate, Dentate

Inflorescence Type: Spike-like, Verticillaster
Flower Morphology:Flowers perfect
Number of Petals:5
Corolla Shape:Bilabiate
Ovary Position:Superior
Colour (petals): Showy, Blue
Flower Time at Peak: Apr, May, Jun

Fruit Type: Schizocarp
Fruit Colour: Brown
Fruiting Time:
Additional Info: Not showy, Ovary separates into four tiny mericarps or "nutlets" that are enclosed in a persistent calyx
Bark Morphology: Smooth
Bark or Stem Colour: Green
Additional Info:ribbed
Organ Modifications: Rhizomes, Runners (or stolons)

Propagation: Layering, Seed, Division - below ground parts
Pest Susceptibility: Pest resistant, Disease resistant, Deer resistant, Rabbit resistant, Drought resistant
(WDY) WeeDY location
Location Map

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