Oenothera fruticosa 'Fyrverkeri'

RHS Plant Profile

evening primrose 'Fyrverkeri'

RHS 2002

Synonyms

Oenothera fruticosa 'Fireworks', Oenothera fruticosa [Fireworks], Oenothera tetragona 'Fireworks'

Herbaceous Perennial

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An erect herbaceous perennial to 50cm in height, with lance-shaped bronze-tinted leaves on purplish stems. Terminal racemes of bright yellow flowers 5cm in width open from reddish buds

Position

Full sun

Soil Types

Chalk, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.5-1 metres
Max Height: 0.5-1 metres

Growing Conditions

Chalk Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South–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): H5
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Onagraceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Genus: Oenothera can be annuals, biennials or perennials, upright or spreading in habit, with simple or lobed leaves and bowl-shaped, white, yellow or pink flowers over a long period in summer
Name Status: Accepted

How to Grow

Cultivation

Grow in moderately fertile soil that is well-drained, ideal for stony sites in full sun as drought-tolerant

Propagation

Propagate by division in early spring or autumn. Propagate by softwood cuttings of non-flowering shoots from late spring to midsummer

Suggested planting locations and garden types

Rock garden
Wildlife gardens
Cottage and informal garden
Gravel garden
Flower borders and beds

Pruning

Cut back after flowering

Pests

Generally pest-free

Diseases

May be susceptible to Powdery mildews and a leaf spot