Pachyphragma macrophyllum

RHS Plant Profile

large-leaved pachyphragma

Synonyms

Thlaspi macrophyllum
Cardamine asarifolia misapplied
Thlaspi biebersteinii

Herbaceous Perennial

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A herbaceous perennial up to 40cm high with rounded, scalloped green basal leaves up to 10cm across in rosettes which partially persist over winter, smaller stem leaves, and flat clusters of small white flowers in spring, followed by small green fruits which are shaped like upside-down hearts

Position

Full shade, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 2–5 years
Max Spread: 0.5-1 metres
Max Height: 0.1-0.5 metres

Growing Conditions

Chalk Clay Loam Sand

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

Position

Full shade Partial shade

Aspect: South–facing or North–facing or East–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): H6

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Brassicaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Clump forming
Genus: Pachyphragma are a genus of evergreen herbaceous perennials ideal for non-intrusive, weed-free ground cover. Small, four-petalled white flowers appear in March/April time and in some varieties leaves can be tinted with red during the autumn and winter months.
Name Status: Correct
Plant Range: Caucasus Turkey

How to Grow

Cultivation

Grow in moderately fertile, moist leafy soil, preferably in partial shade, but it will also grow in full shade; it makes good ground cover beneath trees and deciduous shrubs

Propagation

Propagate by seed in autumn, by division in spring, or by basal stem softwood cuttings in spring

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Low Maintenance
Underplanting of roses and shrubs
Flower borders and beds
Ground cover

Pruning

No pruning required

Pests

Generally pest-free but may be susceptible to slugs

Diseases

Generally disease-free