Ulmus × hollandica 'Jacqueline Hillier'

RHS Plant Profile

Dutch elm 'Jacqueline Hillier'

Synonyms

Ulmus × elegantissima 'Jaqueline'
Ulmus × elegantissima 'Jacqueline Hillier'
Ulmus minor 'Jacqueline Hillier'

Shrubs

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Slow-growing, deciduous shrub of neat, dense, rounded habit about 2.5m tall, with elliptic, mid-green leaves 3.5cm long, arranged in two rows along the stems, turn yellow in autumn, and last on the tree until early winter. Flowers are not usually produced

Position

Full sun, Partial shade

Soil Types

Chalk, Loam, Sand

Max Height

1.5-2.5 metres

Max Spread

1.5-2.5 metres

Size

Time to Maturity: 5–10 years
Max Spread: 1.5-2.5 metres
Max Height: 1.5-2.5 metres

Growing Conditions

Chalk Loam Sand

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

Position

Full sun Partial shade

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

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Ulmaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: Ulmus are deciduous trees, often large, with elliptic or ovate leaves often colouring well in autumn; inconspicuous flowers are followed by winged fruits
Name Status: Accepted

How to Grow

Cultivation

Grow in any well drained soil in full sun or partial shade

Propagation

Propagate by softwood cuttings in summer. Chip budding and grafting may also be used

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Flower borders and beds
Hedging and screens

Pruning

Pruning group 1

Pests

May be susceptible to aphids, bark beetles, horse chestnut scale and elm gall mites

Diseases

May be susceptible to Dutch elm disease, coral spot, honey fungus and phytophthora