Plant guide
Water forget-me-not.
Myosotis scorpioides
Pronounced my-oh-SO-tis skor-pee-OY-deez
Also known as Common Water Forget-Me-Not, European forget-me-not, Forget-me-not, Forget-me-not Water
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This charming perennial loves damp spots and brings a splash of blue to your garden. It thrives near water and spreads easily to form lovely mats of color. You will find it is a classic choice for bog gardens or pond edges.

At a glance
- Care level
- Easy
- Plant type
- Perennial
- Light
- Full sun to partial shade
- Indoor light
- Bright indirect
- Water
- Every 1 to 3 days
- Mature size
- 1 to 2 feet
- Growth rate
- Fast
- Hardiness
- USDA 3 to 9
- Bloom time
- Late spring to late summer
Care
Keep the soil consistently moist or even submerged in shallow water. Watch for wilting if the soil dries out too much. Trim back after flowering to encourage a second flush of blooms.
- Watering
- Keep the soil constantly damp as this plant dislikes drying out.
- Feeding
- Apply a balanced liquid fertilizer during the active growing season.
- Pruning
- Cut back stems after flowering to keep the plant tidy and encourage new growth.
- Repotting
- Repot when the plant becomes root bound or outgrows its container.
- Soil
- Moist to wet soil
- Soil pH
- Neutral to slightly acidic
- Temperature
- -20 to 30°C
- Humidity
- 60 to 90%
- Drought tolerance
- Low
- Lifespan
- Perennial, typically 3 to 5 years.
- Deer and rabbits
- Moderate
Signs it needs repotting
- Roots growing out of the drainage holes
- Stunted growth
- Soil drying out too quickly
Safety
- People
- The plant contains pyrrolizidine alkaloids which can be harmful to the liver if consumed in large amounts over time.
- Children
- Keep away from small children as ingestion of the foliage can cause digestive distress.
- Contact allergens
- Some individuals may experience mild skin irritation from handling the foliage.
- Airborne allergens
- The pollen is not considered a significant allergen.
- Edibility
- While not highly toxic, it is not considered edible and may cause stomach upset if ingested in quantity.
How to identify it
- Small sky blue flowers with yellow centers
- Soft hairy lance shaped leaves
- Stems that often creep along ground
- Flowers arranged in coiled clusters
- Height
- 0.15 to 0.4m
- Spread
- 0.2 to 0.6m
- Leaves
- bright green, semi-evergreen
- Flowers
- blue, yellow, 0.5 to 1cm
- Fruit
- brown, late summer
Problems to watch for
- Powdery mildew · A white fungal growth on leaves often caused by poor air circulation or dry soil.
- Aphids · Small insects that cluster on new growth and suck plant sap.
Check your water forget-me-not from a photo
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Growing it
- Propagation
- division, seed, cuttings
- When to plant
- spring, autumn
- Overwintering
- In cold climates, the foliage may die back to the ground. Simply clear away dead debris in early spring to make room for new growth.
- In containers
- It grows well in containers placed in shallow water or kept very moist, using a minimum 20 cm pot.
Division
- 1. Dig up a clump in early spring.
- 2. Gently pull the root mass apart into smaller sections.
- 3. Replant immediately in moist soil.
Group this plant with others that love wet feet to create a lush, low maintenance bog garden.
Grows well with
- Marsh Marigold · They share similar requirements for wet, boggy soil conditions.
- Yellow Flag Iris · This provides a nice height contrast in a pond side planting.
Similar species
- Woodland Forget Me Not · A related species that prefers drier, shaded woodland conditions.
Science
- Family
- Boraginaceae
- Genus
- Myosotis
- Order
- Boraginales
- Class
- Magnoliopsida
- Native range
- Europe and parts of Asia.
- Conservation
- Not of conservation concern.
It grows along stream banks and in wetlands, using its creeping stems to colonize damp ground.
- Value to wildlife
- nectar source, larval host plant
- Pollinators
- bees, butterflies
- Uses
- bog garden plant, pond edge filler, ground cover, pollinator garden
Through the year
Ecological indicators
- Salinity
- 1/9
- Soil reaction
- 6/9
- Light
- 5/9
- Temperature
- 5/9
- Moisture
- 8/9
- Nutrients
- 5/9
Taxonomy resolved against GBIF.
Questions people ask
- Can I grow this in a normal garden bed?
- Yes, as long as the soil remains consistently moist and does not dry out.
- Does it need full sun?
- It prefers partial shade but will tolerate full sun if the soil stays wet.
Where the name comes from
Myosotis comes from Greek for mouse ear, describing the leaf shape, while scorpioides refers to the coiled flower spike.
Good to know
- It is often called water forget me not.
- The flowers have a tiny yellow eye in the center.
- It spreads readily by creeping stems that root at the nodes.
- It thrives in shallow water or very damp soil.
Keep your water forget-me-not growing
This page is a general guide. Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked.
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This guide was generated with AI on and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.
