Irish-grown garden plants delivered across all 32 counties

Hypericum × dummeri ‘Peter Dummer’

Award Winner Low Maintenance Hardiness H5

Large bright yellow flowers with prominent stamens cover the low spreading branches of Hypericum × dummeri ‘Peter Dummer’ in summer, followed by red-brown fruits and reddish autumn foliage. This hardy shrub is useful for banks, border fronts and low-maintenance ground cover.

SKU: HYPE-8-Y

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Plant Details

Flowering Months

January, not a flowering month
February, not a flowering month
March, not a flowering month
April, not a flowering month
May, not a flowering month
June, flowering month
July, flowering month
August, flowering month
September, not a flowering month
October, not a flowering month
November, not a flowering month
December, not a flowering month

Size

Max Height
0.5 m — 1.0 m
Max Spread
1.0 m — 1.5 m
Growth Habit
Densely branched plant with compact, leafy, rounded overall shape., Spreads horizontally along ground, forming dense flat ground cover.

Planting Position

Sunlight Indicates how much direct sunlight the plant needs each day. Full sun means 6+ hours, part shade is filtered or morning sun, and full shade is little to no direct sun.
Full Sun Part Shade
Aspect Aspect refers to the direction the planting spot faces (north, south, east or west). It affects light levels, warmth and exposure.
North South East West
Exposure Exposure describes how sheltered or exposed a plant’s position is, particularly to wind and weather.
Exposed / Sheltered
Hardiness Hardiness indicates how well a plant tolerates cold conditions outdoors. Higher ratings generally mean greater frost tolerance.
Hardiness H5 (−15 to −10 °C) Cold-hardy

Ideal Soil Conditions

Soil Type Soil type describes the texture of the soil (clay, sand, loam, chalk). This affects drainage, nutrients and how roots grow.
Chalk Clay Loam Sand
Soil Moisture Soil moisture tells you how wet or dry the soil should be for best growth. Match this to your garden conditions for healthier plants.
Moist but permeable / Free draining
Soil pH Soil pH measures how acidic or alkaline the soil is. It affects nutrient availability and can impact plant growth.
Acid Alkaline Neutral

Plant Uses & Merits

Uses
  • Patios / Courtyards
  • Banks / Slopes
  • Flower Borders
Merits
  • Drought Resistant
  • Generally pest-free
  • Low Maintenance
  • RHS | Award Of Garden Merit

Hypericum × dummeri ‘Peter Dummer’ Description

Hypericum × dummeri ‘Peter Dummer’ forms a loose, spreading, semi-evergreen shrub with oval blue-green leaves and a low bushy habit. Large saucer-shaped yellow flowers appear through summer, each filled with a conspicuous cluster of golden stamens. Conical red-brown fruits may follow, while the foliage can develop attractive reddish tones in autumn. Mature plants generally reach around 60cm high and spread 1 to 1.5 metres. Grow in full sun or partial shade in moderately fertile soil that is well drained or remains lightly moist. It is hardy, drought tolerant once established and suitable for exposed Irish borders and banks. The fruits are ornamental and should not be eaten. Prune lightly in spring where necessary to remove old or untidy shoots.