Myosotis sylvatica Sylva Series

RHS Plant Profile
forget-me-not Sylva Series

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Annual Biennial Herbaceous Perennial
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A collection of biennials or short-lived perennials, to around 25cm high, with oval to lance-shaped, softly hairy green leaves. Clusters of small pink, blue or white flowers, with yellow centres fading to cream, are produced in spring and early summer

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
1–2 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Neutral

Position

Full sun Partial shade
Aspect
East–facing or South–facing or West–facing
Exposure
Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

  • H1A: under glass all year (>15C)
  • H1B: can be grown outside in the summer (10 - 15)
  • H1C: can be grown outside in the summer (5 - 10)
  • H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
  • H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
  • H4: hardy through most of the UK (-10 to -5)
  • H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
  • H6: hardy in all of UK and northern Europe (-20 to -15)
  • H7: hardy in the severest European continental climates (< -20)
H6

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Boraginaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus
Myosotis can be annuals, biennials or perennials, with simple leaves and clusters of small, salver-shaped blue, yellow or white flowers, with yellow or white eyes, in spring or early summer
Name Status
Unresolved

How to Grow

Cultivation

Grow in moderately fertile, moist soil in full sun or part shade

Propagation

Propagate by seed

Suggested planting locations and garden types

  • Cottage and informal garden
  • Patio and container plants
  • Wildlife gardens
  • Bedding
  • Flower borders and beds
  • Garden edging
  • Underplanting of roses and shrubs

Pruning

Often used as spring bedding, where plants are removed after flowering to prevent self-seeding

Pests

May be susceptible to slugs and snails

Diseases

May be susceptible to powdery mildews and downy mildews