Growli

Plant care

Wood Forget-me-not (Woodland Forget-me-not) care

Myosotis sylvatica

Also called Wood Forget-me-not, Woodland Forget-me-not, Garden Forget-me-not.

RHS H6USDA 3-8Pet-safeIndoor 20–30 cm tall

Watering rhythm

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

Moderate; keep soil moist but well-drained

Light

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

Soil

Moist, well-drained chalk, clay, or loam; neutral to alkaline pH

Humidity

Moderate (40–70%)

Temp

-20–22°C

Pet safety

Pet-safe

Mature size

20–30 cm tall

Care at a glance

Light

Picture the indirect light an east-facing window gives mid-morning — that's the brightness wood forget-me-not grows fastest in. Prefers dappled or partial shade, though it tolerates full sun if the soil remains consistently moist; south-facing positions in summer sun can cause early die-back. 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 moderate; keep soil moist but well-drained for wood forget-me-not, 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. Water regularly during dry spells, especially in spring when in active flower; plants in full sun dry out faster and need more frequent attention than those in shade.

Soil and pot

Wood Forget-me-not grows best in moist, well-drained chalk, clay, or loam; neutral to alkaline ph. Grows well in humus-enriched garden soil at pH 6.0–7.5; amend heavy clay with grit and leaf mould to improve drainage while retaining the moisture the plant prefers. 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

Wood Forget-me-not sits happiest at around Moderate (40–70%) humidity and -20–22°C (-4–72°F). Reflects its woodland origin; tolerates typical garden ambient humidity without difficulty but dislikes prolonged drought combined with low humidity, which accelerates powdery mildew. 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 wood forget-me-not sparingly. A single application of balanced granular fertiliser in early spring encourages strong flower stems; avoid high-nitrogen feeds, which promote lush foliage at the expense of blooms. 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 wood forget-me-not in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Powdery mildewA common late-season problem, especially in dry, warm conditions; improve air circulation by thinning plants and water at the base rather than overhead. Affected plants can usually be left to set seed before removing.
  • Grey mould (Botrytis cinerea)Dense, congested plantings in cool, damp springs are prone to grey mould collapse; thin seedlings to at least 15 cm apart and remove dead stems promptly to reduce spore load.

Propagation

Grow from seed sown June–July outdoors in a seedbed or modules; transplant to flowering position in autumn. Plants self-seed freely once established — allow at least a few to set seed each year for natural perpetuation. 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

Wood Forget-me-not is pet-safe. Myosotis sylvatica (wood forget-me-not) is listed as non-toxic to cats and dogs by the ASPCA under Scorpion Grasses / Forget-me-nots. While the genus contains trace pyrrolizidine alkaloids, the levels in Myosotis sylvatica are considered too low to cause observed toxic effects in animals or children. 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.

Wood Forget-me-not care — frequently asked questions

What is the common name for Myosotis sylvatica?

Myosotis sylvatica is most commonly called Wood Forget-me-not, but it is also known as Wood Forget-me-not, Woodland Forget-me-not, Garden Forget-me-not. The names refer to the same species, so care instructions for Wood Forget-me-not apply identically to anything sold as Woodland Forget-me-not.

How much light does wood forget-me-not need?

Wood Forget-me-not grows best in medium indirect light (a couple of metres from a window). Prefers dappled or partial shade, though it tolerates full sun if the soil remains consistently moist; south-facing positions in summer sun can cause early die-back.

How often should I water wood forget-me-not?

Water wood forget-me-not moderate; keep soil moist but well-drained. Water regularly during dry spells, especially in spring when in active flower; plants in full sun dry out faster and need more frequent attention than those in shade. 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 wood forget-me-not toxic to cats and dogs?

Wood Forget-me-not is pet-safe. Myosotis sylvatica (wood forget-me-not) is listed as non-toxic to cats and dogs by the ASPCA under Scorpion Grasses / Forget-me-nots. While the genus contains trace pyrrolizidine alkaloids, the levels in Myosotis sylvatica are considered too low to cause observed toxic effects in animals or children.

What USDA hardiness zone does wood forget-me-not grow in?

Wood Forget-me-not is rated for USDA zone 3-8 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Wood Forget-me-not deep-dive guides

Every aspect of wood forget-me-not care, each with its own calibrated guide:

Featured in these plant shortlists

Wood Forget-me-not qualifies for 12 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 flowering houseplantsIndoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
  • 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 small & tabletop houseplantsCompact houseplants that stay under about 40 cm — desk, shelf and windowsill plants that never outgrow a small space.
  • Best houseplants for a cool roomHouseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
  • 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.
  • Best small pet-safe plantsCompact, tabletop houseplants that are also ASPCA non-toxic to cats and dogs — safe greenery for a desk or shelf.
  • Browse all 29 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Wood Forget-me-not is also known as Wood Forget-me-not, Woodland Forget-me-not, and Garden Forget-me-not.