North America Non-native Plant

Purple Deadnettle

Botanical name: Lamium purpureum

USDA symbol: LAPU2

Life cycle: annual

Habit: forb

Native status: Non-native, reproduces and persists in the wild in Alaska âš˜ Non-native, reproduces and persists in the wild in Canada âš˜ Non-native, reproduces and persists in the wild in Greenland âš˜ Non-native, reproduces and persists in the wild in the lower 48 states âš˜ Status ranges from native to a waif that isn't naturalizedSt. Pierre and Miquelon  

Purple Deadnettle: The Quirky Early Spring Bloomer You Might Already Have If you’ve ever noticed small purple flowers popping up in your garden before most other plants have even thought about blooming, you’ve likely encountered purple deadnettle (Lamium purpureum). This plucky little annual has a knack for showing up uninvited, ...

Purple Deadnettle: The Quirky Early Spring Bloomer You Might Already Have

If you’ve ever noticed small purple flowers popping up in your garden before most other plants have even thought about blooming, you’ve likely encountered purple deadnettle (Lamium purpureum). This plucky little annual has a knack for showing up uninvited, but don’t be too quick to dismiss it – this early riser might just earn a spot in your heart, if not your formal garden plan.

What Exactly Is Purple Deadnettle?

Purple deadnettle is an annual forb – basically a non-woody plant that completes its entire life cycle in one year. Don’t let the deadnettle name scare you; it’s not actually related to stinging nettles and won’t leave you with an itchy surprise. The name comes from its nettle-like leaves, though these are completely harmless to touch.

This little plant is a true globe-trotter, originally hailing from Europe, Asia, and North Africa. Today, it has made itself at home across much of North America, thriving in states from Alabama to Alaska, and provinces from British Columbia to Newfoundland. It’s what botanists call naturalized – meaning it reproduces happily in the wild without any help from humans.

The Case for Purple Deadnettle

Before you reach for the weeding tools, consider these appealing qualities:

  • Early pollinator support: Purple deadnettle blooms when few other flowers are available, providing crucial early-season nectar for bees and other pollinators emerging from winter
  • Edible leaves: Young leaves are edible and can add a mild, slightly minty flavor to salads or cooked dishes
  • Low maintenance: Once established, it requires virtually no care and thrives in USDA hardiness zones 3-9
  • Quick ground cover: Its low-growing habit makes it useful for filling gaps in garden beds
  • Attractive foliage: The heart-shaped leaves often develop a lovely purple tinge, especially in cool weather

The Case Against Purple Deadnettle

However, purple deadnettle isn’t for everyone:

  • Aggressive self-seeding: It can spread rapidly through self-seeding, potentially overwhelming more delicate plants
  • Non-native status: As a non-native species, it doesn’t provide the same ecological benefits as native plants
  • Can be weedy: Its enthusiastic growth habit might not fit with formal garden designs

Growing Purple Deadnettle Successfully

If you decide to welcome purple deadnettle into your garden, here’s what you need to know:

Growing Conditions: This adaptable plant thrives in moist, well-drained soil but tolerates a wide range of conditions. It prefers partial shade to full sun and actually performs best in cooler weather, often looking tired once summer heat arrives.

Planting: Purple deadnettle readily self-seeds, so you may not need to plant it at all – it might just appear on its own! If you want to encourage it, simply allow existing plants to go to seed, or scatter seeds in early spring or fall.

Care Tips: This is definitely a set it and forget it plant. Water during dry spells if desired, but it’s quite drought-tolerant once established. The main care you might need to provide is managing its spread if it gets too enthusiastic.

Design Ideas and Garden Uses

Purple deadnettle works best in:

  • Wild or naturalized garden areas
  • Cottage garden settings where a casual look is desired
  • Herb gardens, particularly if you plan to harvest the edible leaves
  • Early spring pollinator gardens
  • Areas where you want quick, temporary ground cover

Native Alternatives to Consider

While purple deadnettle has its charms, consider these native alternatives that provide similar benefits with greater ecological value:

  • Wild ginger (Asarum canadense): Native ground cover with heart-shaped leaves
  • Wild columbine (Aquilegia canadensis): Native early bloomer beloved by pollinators
  • Virginia waterleaf (Hydrophyllum virginianum): Native spring ephemeral with pollinator appeal

The Bottom Line

Purple deadnettle is one of those plants that falls into the it depends category. If you appreciate low-maintenance plants that provide early season color and pollinator support, and you don’t mind a somewhat informal garden aesthetic, it might be a welcome addition. However, if you prefer a more controlled garden environment or want to focus on native species, you might want to look elsewhere.

Remember, gardening is ultimately about creating a space that brings you joy. Whether that includes purple deadnettle or not is entirely up to you – just be prepared for its enthusiastic self-seeding habits if you do decide to let it stay!

Purple Deadnettle

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Asteridae

Order

Lamiales

Family

Lamiaceae Martinov - Mint family

Genus

Lamium L. - deadnettle

Species

Lamium purpureum L. - purple deadnettle

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA