Primula vialii Alison Holland ('Aliholl'PBR) (So) | Vial's primrose 'Alison Holland'

RHS

Synonyms

Primula vialii 'Aliholl'^PBR
Primula vialii 'Alison Holland'

Herbaceous Perennial

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A rosette-forming, often short-lived perennial forming a clump of mid-green, hairy leaves. Stiff, stout, white mealy stems produce dense spikes of tubular white flowers, pale-green in bud, during summer

Position

Partial shade

Soil Types

Clay, 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

Clay Loam

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

Position

Partial shade

Aspect: East–facing or North–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): H5

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Primulaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
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: Trade
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: Soldanelloides primulas form creeping mats of green, deeply pinnate, oval-shaped leaves, with solitary, nodding, funnel-shaped white flowers

How to Grow

Cultivation

Grow in part shade in deep, humus-rich, moist, neutral to acid soil; sun-tolerant if soil is reliably moist at all times

Propagation

Propagate by division between autumn and spring, root basal cuttings or offsets in autumn, propagate by root cuttings in winter. Seed propagation has proved unsuccessful

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Rock garden
Flower borders and beds
Garden edging

Pruning

Tidy old or diseased leaves, or after flowering

Pests

May be susceptible to slugs, aphids, leaf hoppers and vine weevil

Diseases

Susceptible to grey moulds (Botrytis), leaf spot (fungal) and a virus