Rosa 'Trier' (Ra) | rose 'Trier'

Roses

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Upright vigorous, healthy rose about 2.5m tall, with small, dainty, glossy, dark green leaves. Strongly scented, single white blooms with prominent golden stamens open from pink buds and are produced in masses on very large, loose clusters, in late summer and autumn followed by small red fruits (hips)

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

2.5-4 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 1.5-2.5 metres
Max Height: 2.5-4 metres

Growing Conditions

Chalk Clay Loam Sand

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

Position

Full sun

Aspect: South–facing or West–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): H6

Colour & Scent

Fragrance Flower

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Rosaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy, Climbing
Potentially harmful: Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus: Rosa can be deciduous or semi-evergreen shrubs or scrambling climbers, with usually thorny stems bearing compound pinnate leaves and solitary or clustered flowers. Flowers may be followed by showy red or purple fruits in some varieties.
Name Status: Accepted
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: Rambler roses are vigorous shrubs with long, arching, thorny or smooth stems carrying glossy foliage and large sprays of small, single or double, often fragrant flowers in early summer

How to Grow

Cultivation

Grow in fertile, humus-rich, moist but well-drained soil in full sun. Mulch with well-rotted organic matter in late winter or early spring, and for best flowering apply a general rose or shrub fertiliser in early spring and again in early summer. See rose cultivation

Propagation

Propagate by hardwood cuttings in autumn, softwood cuttings (under glass) in spring or summer or by chip budding in summer

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Wildlife gardens
Climber and wall shrubs
Cut flowers
Hedging and screens
Wall side borders

Pruning

See pruning group 18 (rambling roses) and our video How to prune rambling roses. Do not deadhead flowers if fruits (hips) are required

Pests

May be susceptible to aphids, rose leafhopper, glasshouse red spider mite, scale insects, caterpillars, large rose sawfly, rose slugworm sawfly and rose leaf-rolling sawfly. Deer and rabbits can cause damage

Diseases

May be susceptible to rose black spot, rose rust, replant disease, rose dieback, and rose powdery mildew. May also be susceptible to disorders rose blindness and flower balling and sometimes honey fungus