Petunia multiflora 'Opera Supreme Purple'

RHS Plant Profile

petunia 'Opera Supreme Purple'

Herbaceous Perennial Annual Biennial

A herbaceous perennial with showy purple flowers, also used as an annual, flowering profusely from spring to late summer. Has a trailing habit and starts flowering earlier than other cultivars.

Position

Full sun, Partial shade

Soil Types

Sand

Max Height

0.1-0.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 1 year
Max Spread: 0.5-1 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Sand

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

Position

Full sun Partial shade

Aspect: West–facing or South–facing or East–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): H2

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Solanaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Spreading branched, Trailing
Genus: Petunia can be annuals or perennials, with simple leaves and large, solitary, trumpet-shaped flowers in the upper leaf axils from late spring to autumn
Name Status: Unresolved

How to Grow

Cultivation

Will grow in fertile, sandy soil with good drainage, in full sun or partial shade.

Propagation

Propagate by seed and stem cuttings

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Hanging Basket
Patio and container plants
Banks and slopes
Bedding
Conservatory and greenhouse
Flower borders and beds
Ground cover

Pruning

Prune tips of stems every few weeks to keep the plant bushy and avoid it becoming leggy

Pests

May be susceptible to spider mites, leafminers, thrips, cutworms

Diseases

May be susceptible to blight, crown rot