Overview

Petrorhagia prolifera is a low-growing, clump-forming herbaceous perennial in the genus Petrorhagia, part of the Caryophyllaceae family, with narrow, grass-like foliage. Petrorhagia prolifera grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H5. Suggested uses include rock gardens, borders and ground cover.

About

Petrorhagia prolifera, commonly known as childing pink or proliferous pink, is a low-growing, clump-forming cultivar within the genus Petrorhagia. This genus includes compact flowering plants with slender, grass-like leaves and small clusters of flowers in shades of pink, lilac, or white. Petrorhagia prolifera thrives in full sun on a south-facing, sheltered aspect, preferring neutral loam soil with average moisture. Hardy to UK zone H5, it is suitable for rock gardens, borders, and ground cover, with interest in spring and summer. It can be propagated by seed or division and is best planted after the last frost in fertile soil.

About the genus

Petrorhagia is a small genus of annual and perennial plants of the family Caryophyllaceae, mostly native to the Mediterranean region. It is low-growing with wiry stems and narrow, grass-like leaves. The flowers are small, in clusters similar to members of the genus Dianthus, in pink, lilac, or white.

Wikipedia contributors, "Petrorhagia", CC BY-SA 4.0Petrorhagia

Growing conditions

Best soil and position for Petrorhagia

Sunlight
Full sun
Soil type
Loam
Soil pH
Neutral
Soil moisture
Average
Aspect
South-facing
Exposure
Sheltered
UK hardiness
H5

Plant details

Petrorhagia prolifera size, habit and characteristics

Plant type
Herbaceous Perennial, Alpine Rockery
Habit
Low-growing, clump-forming
Foliage
Narrow, grass-like
Suggested uses
Rock gardens, borders, ground cover

Care notes

Pruning and caring for Petrorhagia prolifera

Propagation
Seed, division
Pest resistance
Good
Disease resistance
Good

Frequently asked questions

Where is the best place to plant Petrorhagia prolifera?

Petrorhagia prolifera prefers full sun. It suits sheltered positions.

What soil does Petrorhagia prolifera need?

Petrorhagia prolifera grows best in loam soil. It prefers neutral soil. Aim for soil that stays average.

Is Petrorhagia prolifera hardy in the UK?

Petrorhagia prolifera has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Petrorhagia prolifera?

Seed, division.