How to Grow Water Forget-me-not

Water Forget-me-not

Myosotis scorpioides

flower

Water forget-me-not is a charming aquatic perennial with delicate blue flowers and small, oval leaves that grow in dense mats. It thrives in shallow water and wet margins of ponds and streams, making it ideal for water gardens and bog gardens. The plant produces countless tiny blue flowers with yellow centers throughout the growing season.

Growing Conditions

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Sun: Full sun to partial shade; 4-6 hours of sunlight daily for best flowering

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Water: Requires consistently wet to moist conditions; grows in water 2-6 inches deep. Can also be grown in bog gardens or along pond edges. Prefers cool, flowing water.

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Spacing: 12-18 inches

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Days to maturity: 60-90 days from transplant to flowering

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Planting depth: Plant transplants at soil surface; seeds can be surface-sown on moist substrate

Soil

Type: Moist to wet, organic-rich soil or aquatic substrate

pH: 6.0-7.5

Amendments:

Compost or peat moss Aquatic planting soil Organic matter for water gardens

Growing Zones

Find your zone →

Thrives in zones 3-9, with best performance in zones 4-8

3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b

Growth Stages

Seedling

2-3 weeks

Tiny seedlings with first true leaves emerge on moist substrate

Keep consistently moist; maintain cool temperatures; provide bright light but protect from direct intense heat

Vegetative Growth

4-6 weeks

Plant develops dense mat of small, oval-shaped leaves; stems root at nodes

Ensure water level is maintained; thin crowded growth if needed; avoid stagnant water

Flowering

8-12 weeks or longer

Delicate blue flowers with yellow centers appear in clusters above foliage

Maintain water quality and level; deadhead spent flowers to encourage more blooms; reduce nutrient overload to prevent algae

Peak Bloom

4-8 weeks

Plant produces abundant flowers continuously throughout warm months

Monitor water temperature (prefers cool conditions); continue deadheading; watch for pest issues in warm water

Dormancy/Winter

3-4 months

Growth slows or stops in cold climates; foliage may die back in freezing conditions

In colder zones, protect crown; plant provides winter interest if evergreen; resume growth in spring

Companion Planting

Plan your garden →

Plant with:

Water iris Pickerel rush Cardinal flower Marsh marigold Water mint Aquatic sedges Dwarf cattails Watercress

Avoid planting near:

Aggressive fast-growing aquatic plants like water hyacinth Duckweed (competes for space and light) Invasive water lilies in small ponds

Common Pests

Spray with water to dislodge; use insecticidal soap if severe; introduce aquatic-safe predatory insects
Increase humidity; rinse foliage; use aquatic miticide if needed
and
Hand-pick in early morning; copper barriers around plantings; encourage natural predators like dragonfly nymphs
Maintain water circulation and aeration; reduce excess nutrients; add shade with floating plants; use aquatic algaecide if necessary

Uses

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Edible Flowers

Culinary

Water forget-me-not flowers are non-toxic and can be used as delicate garnishes for salads and desserts. They add visual appeal with minimal flavor impact. [source]

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Cut Flowers & Floral Arrangements

Household

The delicate blue flowers are perfect for small bouquets, pressed flower projects, and aquatic floral designs. They're particularly beautiful in mixed garden arrangements or water-feature displays. [source]

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Pollinator Support

Wildlife

Water forget-me-nots provide nectar and pollen for small bees, butterflies, and other beneficial insects. They're especially valuable in water gardens where pollinators may be scarce. [source]

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Pressed Flowers & Craft

Craft

The tiny flowers preserve beautifully when pressed and are ideal for bookmarks, greeting cards, and decorative craft projects. [source]

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Traditional Herbal Use

Medicinal

Historically used in herbal traditions to support eye health and as a gentle tonic; modern evidence is limited but the plant is generally recognized as safe. [source]

This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.

Harvest Tips

Water forget-me-not is primarily ornamental; harvest fresh flowers for cutting by pinching or snipping stems early in the morning when blooms are fresh. Flowers last 1-2 days in water. For propagation, collect seed pods when dry (usually late summer) and store in cool, dry conditions. Vegetative propagation is easier: divide established plants in spring or autumn, or take stem cuttings that will root in wet conditions.

Fun Facts

🌱 The curved flower stem resembles a scorpion's tail, which inspired the scientific name 'scorpioides' and the common name forget-me-not in many languages, symbolizing remembrance and love.
🌱 Water forget-me-not flowers close at night and reopen in the morning, following a daily rhythm that makes them particularly photogenic in morning light.
🌱 This species can reproduce vegetatively through rooting stems and runners, allowing a single plant to spread into a substantial colony over a growing season in ideal aquatic conditions.

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