Fragaria × ananassa 'Royal Sovereign' (F)

RHS Plant Profile
strawberry 'Royal Sovereign'

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Fruit Edible Herbaceous Perennial
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An older, heritage cultivar cropping in midsummer with fruits that are not as large as more modern varieties nor as high yielding but with a high juice content and very sweet and intense flavour

Position

Full sun

Soil Types

Loam

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

Loam
Moisture
Moist but well–drained
pH
Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
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
Rosaceae
Native to GB/Ireland
No
Foliage
Semi evergreen
Habit
Trailing
Genus
Fragaria are stoloniferous perennials with leaves composed of three leaflets, and rounded white or pink flowers followed by edible red fruits
Name Status
Unresolved
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea

This genus produces fruit, but not necessarily edible fruit

How to Grow

Cultivation

Grow in fertile, moist but well-drained soil in full sun. Plant in single or double rows with 30-45cm between plants and 75cm between rows. Plant through biodegradable, weed-suppressing membrane, or apply straw to keep strawberries clean. Can be successfully grown in a container, including growbags. See strawberry cultivation for further details

Propagation

Remove and transplant runners

Suggested planting locations and garden types

  • Cottage and informal garden
  • Patio and container plants
  • Hanging Basket
  • Wildlife gardens
  • Edible fruit

Pruning

Remove excess runners

Pests

May be susceptible to aphids, slugs and snails, glasshouse red spider mite and vine weevil

Diseases

May be susceptible to strawberry viruses and root rot. Fruit prone to grey moulds