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Plant care

Beacon Silver Dead Nettle (Beacon Silver Spotted Dead Nettle) care

Lamium maculatum 'Beacon Silver'

Also called Beacon Silver Dead Nettle, Beacon Silver Spotted Dead Nettle, Beacon Silver Lamium.

RHS H7USDA 3-8Pet-safeIndoor 15–20 cm tall (6–8 in)

Watering rhythm

7-10days

Every 7–10 days; water more frequently in sunny or dry situations

Light

Medium indirect light (a couple of metres from a window)

Soil

Average, humus-rich, well-drained soil

Humidity

Moderate; 40–60% RH

Temp

-34°C to 29°C

Pet safety

Pet-safe

Mature size

15–20 cm tall (6–8 in)

Care at a glance

Light

Picture the indirect light an east-facing window gives mid-morning — that's the brightness beacon silver dead nettle grows fastest in. Part shade to full shade is ideal. 'Beacon Silver' tolerates more sun than most Lamium maculatum cultivars, including several hours of morning sun, but afternoon sun in warm climates causes leaf scorch. You'll know it's right when new leaves come out the same size and colour as the established ones. Smaller, paler new leaves = move closer to the window.

Watering

Aim for every 7–10 days; water more frequently in sunny or dry situations for beacon silver dead nettle, but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Prefers consistently moist, well-drained soil. Established plants have moderate drought tolerance in shade. Avoid overwatering in winter. Water at the base to limit fungal issues.

Soil and pot

Beacon Silver Dead Nettle grows best in average, humus-rich, well-drained soil. Grows in loam, clay-loam, or sandy soils amended with organic matter. Target pH 6.0–7.0. Good drainage is essential; waterlogged conditions cause crown rot, especially in winter. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Beacon Silver Dead Nettle sits happiest at around Moderate; 40–60% RH humidity and -34°C to 29°C (-29°F to 84°F). Performs well under typical temperate outdoor humidity. High heat and humidity together promote powdery mildew; ensure good airflow between plants. If you keep the room above year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed beacon silver dead nettle sparingly. Light application of balanced granular fertiliser in early spring encourages lush foliage. A second application in early summer can be given if growth appears slow. Avoid late-summer feeding. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on beacon silver dead nettle in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Powdery mildewA common issue in overcrowded or dry-at-root but humid-air conditions. Improve spacing and airflow; shear plants back after the first flush of flowering to promote clean, new growth.
  • Summer dormancy in heatIn hot, humid climates (zones 7–8), foliage can die back by midsummer. Cut plants back hard and water; they typically return vigorously in cooler weather.
  • Aggressive spread in favourable conditionsCan spread quickly via stolons in ideal moist, shaded settings. Edge beds annually or lift and divide every two to three years to keep in bounds.

Propagation

Division in spring or autumn is the simplest method. Stem tip cuttings root quickly in moist cutting compost during spring. Self-layers readily where stems contact soil. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Beacon Silver Dead Nettle is pet-safe. Lamium maculatum is not listed as toxic to cats or dogs by the ASPCA. No known toxic principles are present in the genus. Safe in gardens used by pets. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Beacon Silver Dead Nettle care — frequently asked questions

What is the common name for Lamium maculatum 'Beacon Silver'?

Lamium maculatum 'Beacon Silver' is most commonly called Beacon Silver Dead Nettle, but it is also known as Beacon Silver Dead Nettle, Beacon Silver Spotted Dead Nettle, Beacon Silver Lamium. The names refer to the same species, so care instructions for Beacon Silver Dead Nettle apply identically to anything sold as Beacon Silver Spotted Dead Nettle.

How much light does beacon silver dead nettle need?

Beacon Silver Dead Nettle grows best in medium indirect light (a couple of metres from a window). Part shade to full shade is ideal. 'Beacon Silver' tolerates more sun than most Lamium maculatum cultivars, including several hours of morning sun, but afternoon sun in warm climates causes leaf scorch.

How often should I water beacon silver dead nettle?

Water beacon silver dead nettle every 7–10 days; water more frequently in sunny or dry situations. Prefers consistently moist, well-drained soil. Established plants have moderate drought tolerance in shade. Avoid overwatering in winter. Water at the base to limit fungal issues. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is beacon silver dead nettle toxic to cats and dogs?

Beacon Silver Dead Nettle is pet-safe. Lamium maculatum is not listed as toxic to cats or dogs by the ASPCA. No known toxic principles are present in the genus. Safe in gardens used by pets.

What USDA hardiness zone does beacon silver dead nettle grow in?

Beacon Silver Dead Nettle is rated for USDA zone 3-8 and RHS hardiness H7. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Beacon Silver Dead Nettle deep-dive guides

Every aspect of beacon silver dead nettle care, each with its own calibrated guide:

Featured in these plant shortlists

Beacon Silver Dead Nettle qualifies for 13 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

  • Best pet-safe houseplantsHouseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
  • Best low-light houseplantsHouseplants that need no direct sun and cope with a north-facing room or a spot well back from a window.
  • Best plants for a north-facing windowHouseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
  • Best pet-safe low-light plantsNon-toxic to cats and dogs AND happy with no direct sun — the two hardest constraints to satisfy at once.
  • Best drought-tolerant houseplantsHouseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
  • Best houseplants for beginnersForgiving of irregular light and watering — the houseplants least likely to die in a new plant parent’s first season.
  • Best flowering houseplantsIndoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
  • Best pet-safe low-maintenance plantsNon-toxic to cats and dogs and forgiving of forgotten watering — the easiest safe choices for a busy pet household.
  • Best pet-safe flowering plantsFlowering houseplants the ASPCA lists as non-toxic to cats and dogs — colour and blooms in a pet home, without the worry.
  • Best fast-growing houseplantsHouseplants documented as fast or vigorous growers — quick to fill a pot, cover a pole or trail down a shelf.
  • Best pet-safe bedroom plantsNon-toxic to cats and dogs and happy in lower light — calming greenery for a bedroom where a pet often sleeps too.
  • Best cat-safe plantsHouseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
  • Best dog-safe plantsHouseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
  • Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Beacon Silver Dead Nettle is also known as Beacon Silver Dead Nettle, Beacon Silver Spotted Dead Nettle, and Beacon Silver Lamium.