Spotted Dead Nettle Is Not Harmful to Dogs or Poisonous to Cats

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Rest assured that purple spotted dead nettle is non-toxic to dogs and cats. We check the flowers we feature on our site with the ASPCA and do extensive internet research for both the common and scientific name just to be super pet safe. If we cannot find direct reference, we check up to genus and so on until we can confirm whether a plant is toxic or non toxic to both cats and dogs. If we are not sure, or get contradictory information, we do not include it. Many of the plants featured we have grown successfully in our own pet safe garden in Northern California. You can see many of garden stars in photos from Lovie’s Pet Safe Garden.

is spotted dead nettle poisonous to cats
is purple deadnettle harmful to dogs

Physical Attributes

  • Height: 6-9 inches (15-23 cm) tall
  • Spread: 2-3 feet (60-90 cm)
  • Leaves: Heart-shaped, variegated, often silver or white with green edges
  • Flowers: Small, hooded, in whorls; pink, purple, or white
  • Stem: Square, hollow, trailing
  • Growth habit: Low-growing, spreading groundcover
  • Foliage: Evergreen in mild climates, semi-evergreen elsewhere

General Care Tips

  • Light: Partial sun to full shade
  • Soil: Well-drained, moist, slightly acidic
  • Water: Average moisture; more in sunnier locations
  • Hardiness: USDA zones 3-8
  • Pruning: Remove reverted all-green leaves
  • Propagation: Division or stem cuttings
  • Maintenance: Low; control spread if necessary
  • Companion plants: Hostas, ferns, astilbe, hellebores

Fun Facts

  • Not related to stinging nettles despite the name “dead nettle”
  • Member of the mint family (Lamiaceae)
  • Attracts bees, especially bumblebees
  • Used as a groundcover to suppress weeds
  • Some varieties have leaves that are almost entirely silver
  • Can be used in hanging baskets or as a container plant
  • Deer and rabbit resistant
  • Native to Europe and temperate regions of Asia
  • Name “Lamium” comes from the Greek word for “throat”
  • Historically used in herbal medicine for various ailments

Here’s a table with two columns addressing the considerations for Spotted Dead Nettle (Lamium maculatum) flowering plant:

ConsiderationAnswer
Container FriendlyYes
Indoor/OutdoorPrimarily outdoor
Sun/ShadePartial sun to full shade
Perennial/AnnualPerennial
FloweringMid-spring to early summer, sporadically into fall
Drought TolerantModerate, prefers moist soil
Pollinator MagnetYes, attracts bees
Beginner FriendlyYes, low maintenance
Good Ground CoverExcellent
Good Privacy ScreenNo, low-growing (6-9 inches tall)
Invasive/SpreaderCan spread quickly, may be invasive in some areas
Hearty/DelicateHearty
Rodent RepellantNo specific information available
Deer ResistantYes
Native ToEurope and temperate regions of Asia
Ideal States/RegionsUSDA zones 3-8, adaptable to many regions

Citations:
[1] https://www.wildflower.org/plants/result.php?id_plant=COHE
[2] https://mortonarb.org/plant-and-protect/trees-and-plants/spotted-dead-nettle/
[3] https://larnerseeds.com/products/collinsia-heterophylla-purple-chinese-houses
[4] https://naturecollective.org/plant-guide/details/chinese-houses/
[5] https://www.gardenia.net/plant/lamium-maculatum-spotted-dead-nettle
[6] https://www.gardenia.net/plant/lamium-maculatum-spotted-dead-nettle
[7] https://mortonarb.org/plant-and-protect/trees-and-plants/spotted-dead-nettle/
[8] https://hort.extension.wisc.edu/articles/spotted-deadnettle-lamium-maculatum/
[9] https://www.mckaynursery.com/deadnettle
[10] https://www.thespruce.com/spotted-dead-nettles-2132591