Rosa 'Henri Martin' (CeMo) | rose 'Henri Martin'

Other common names

old red moss rose, red moss rose

Synonyms

Rosa × centifolia 'Henri Martin'
Rosa red moss
Rosa old red moss

Roses

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An old rose, neatly rounded, growing to 2m tall with thorny, mossy stems bearing pinnate leaves divided into ovate, toothed, leathery, dark-green leaflets and clusters of moss buds opening into highly fragrant, semi-double blooms of pure crimson, later becoming purple crimson, flowering in one flush during summer

Position

Full sun

Soil Types

Sand, Loam, Clay, Chalk

Max Height

1.5-2.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity: 2–5 years
Max Spread: 1-1.5 metres
Max Height: 1.5-2.5 metres

Growing Conditions

Sand Loam Clay Chalk

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

Position

Full sun

Aspect: East–facing or South–facing or West–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): H7

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
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: Centifolia roses are lax bushes with thorny stems and double, usually fragrant flowers in summer

How to Grow

Cultivation

Grow in fertile, humus rich, moist but well drained soil in full sun. For best flowering, apply a balanced fertiliser and mulch in late Winter or early Spring; apply fertiliser again in early Summer. See rose cultivation

Propagation

Propagate by softwood cuttings in early to mid Spring, hardwood cuttings in late Summer to Autumn or by chip budding in Summer

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Patio and container plants
Cut flowers
Flower borders and beds

Pruning

See pruning group 20 (shrub roses)

Pests

May be susceptible to aphids, caterpillars, glasshouse red spider mite, rose leafhopper, rabbits, rose leaf-rolling sawfly, scale insects

Diseases

May be susceptible to rose black spot, rose rust, rose powdery mildews, which are the most common rose diseases. May also be susceptible to rose dieback, replant disease, a canker, a virus and sometimes honey fungus