Primula 'Primlet Rose' (Primlet Series) (Pr/Prim)

RHS / Joanna Kossak

Herbaceous Perennial

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A semi-evergreen, rosette-forming perennial with dark green leaves. Produces deep pink double flowers in spring which are rosebud shaped on opening.

Position

Full sun, Partial shade

Soil Types

Clay, Loam

Max Height

Up to 10 cm

Max Spread

0-0.1 metre

Size

Time to Maturity: 1–2 years
Max Spread: 0-0.1 metre
Max Height: Up to 10 cm

Growing Conditions

Clay Loam

Moisture: Moist but well–drained
pH: Neutral or Acid

Position

Full sun Partial shade

Aspect: South–facing or West–facing or East–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): H3

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Primulaceae
Native to GB/Ireland: No
Foliage: Semi evergreen
Habit: Clump forming
Genus: Primula are herbaceous or semi-evergreen perennials, forming a basal rosette of simple leaves, with salver-shaped or bell-shaped flowers which may be solitary or carried in an umbel or in whorls on an erect stem
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: Primrose group primulas are mainly grown as herbaceous perennials, and produce clusters of flowers on individual stems from the basal rosettes, although a few may also have umbel-like flowers. They are either spring-flowering, if grown without protection, or winter- to spring-flowering, if grown as biennial container plants in greenhouses or indoors.

How to Grow

Cultivation

Grow in deep, humus-rich, moist soil. Partial shade is ideal, but will tolerate full sun if the soil is kept moist. See primula cultivation for further advice

Propagation

Propagate by seed sown in spring, or by division between autumn and early spring. Root basal cuttings or offsets in autumn or early spring

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Houseplants
Banks and slopes
Bedding
Flower borders and beds
Underplanting of roses and shrubs
Garden edging
Conservatory and greenhouse

Pruning

deadhead after flowering

Pests

May be susceptible to aphids, glasshouse red spider mite, glasshouse leafhopper and vine weevil. slugs and snails may cause damage to leaves

Diseases

May be susceptible to virus diseases, grey moulds and primula brown core (root rot)