Updated May 20, 2022
Purple Dead Nettle (Lamium Purpureum) is a lovely and useful herbaceous plant. It grows abundantly around our site in Southwest, Michigan and I see it popping up all over this area. It can be found throughout the US, Canada, and many other parts of the world. This hardy weed thrives in lawns, roadsides, and can grow in a variety of conditions. It is also frost tolerant. It is most commonly found growing in loamy or sandy soils, but will also do well in clay soils. It is an self-seeding annual. Each plant produces lots of seeds (it’s estimated to be several hundred to several thousand) and those seeds can germinate year round.
Purple dead nettle is considered to be an “invasive species” due to its ability to thrive and reproduce in many environments. In fact, much of the literature available on this plant is geared towards methods of eradication, including pulling up the herb to control its population. It is interesting to note that purple dead nettle seeds germinate better when the soil is disturbed. “Invasive” plants like purple dead nettle often grow in places where humans have disrupted the natural balance. These plants are simply trying to restore equilibrium to their environment. When we pull and spray these plants we are further disturbing the areas where they grow and actually increasing their ability to return and spread.
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