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Shrubs

Philadelphus schrenkii

Schrenk's tulip

A large, upright, deciduous shrub with peeling bark and very fragrant, white, four-petalled flowers, 3cm wide in clusters of five to seven. One of the earliest Philadelphus to flower, in late spring and early summer

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Ultimate height

2.5–4 metres

Time to ultimate height

10–20 years

Ultimate spread

2.5–4 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

South–facing or North–facing or West–facing or East–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)

Botanical details

Family: Hydrangeaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: Philadelphus are deciduous shrubs with simple, opposite leaves and bowl-shaped, usually fragrant flowers which may be solitary or in small panicles or racemes in summer
Name status: Correct
Plant range: Korea to E. Siberia

How to grow

Cultivation

Grow in any moderately fertile, well-drained soil in sun or semi-shade

Propagation

Propagate by softwood or hardwood cuttings

Suggested planting locations and garden types

Coastal
Cottage and informal garden
Low Maintenance
Flower borders and beds
Hedging and screens

Pruning

Pruning group 2

Pests

May be susceptible to aphids

Diseases

May be susceptible to honey fungus (rarely) and powdery mildews

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