Overview

Paeonia mollis is a clump-forming, upright perennial in the genus Paeonia, part of the Paeoniaceae family, with deciduous; deeply divided, frequently bronze-flushed when young foliage. Paeonia mollis grows best in full sun to partial shade, and tolerates deep and fertile loam or clay soils and neutral to slightly alkaline pH. Its UK hardiness is rated H6–H7. Suggested uses include ornamental shrub, garden borders and specimen plant. It is native to Caucasus region.

About

Paeonia mollis is a clump-forming, upright perennial peony noted for its fragrant flowers that open in May to June. Foliage is deciduous and deeply divided, often flushed bronze when young. It prefers full sun to partial shade on deep, fertile loam or clay of neutral to slightly alkaline reaction. Give a sheltered position and avoid early morning sun on frosted buds to protect emerging shoots.

About the genus

The peony or paeony is any flowering plant in the genus Paeonia, the only genus in the family Paeoniaceae. Peonies are native to Asia, Europe, and Western North America. Scientists differ on the number of species that can be distinguished, ranging from 25 to 40, although the current consensus describes 33 known species.

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

In the garden

Paeonia mollis originates from the Caucasus region and is a member of the Paeoniaceae. As a clump-forming, upright perennial it carries deeply divided, deciduous leaves that frequently show a bronze flush when young and bears fragrant blooms in May to June. Plant in a position that receives full sun or partial shade; the species tolerates any aspect except deep shade. It prefers heavy, deep soils such as fertile loam or clay with a neutral to slightly alkaline pH and benefits from soil that remains moist but drains freely. Choose a sheltered site — exposure should be protected from strong winds — and avoid planting where early morning sun hits frosted buds. Paeonia mollis is rated H6–H7 for UK hardiness (very hardy to fully hardy) and corresponds to USDA zones 3–8. Use it as a specimen or as a focal point in garden borders where its upright clumps and scented flowers can be appreciated at close range. The combination of divided, bronze-tinged foliage and fragrant May-to-June flowers makes the plant particularly effective where scent and structure are needed together.

Growing conditions

Best soil and position for Paeonia

Sunlight
Full sun to partial shade
Soil type
Deep, fertile loam or clay
Soil pH
Neutral to slightly alkaline
Soil moisture
Moist but well drained
Aspect
Any but deep shade; avoid early morning sun on frosted buds
Exposure
Sheltered
UK hardiness
H6–H7

Plant details

Paeonia mollis size, habit and characteristics

Plant type
Perennial
Habit
Clump-forming, upright
Foliage
Deciduous; deeply divided, frequently bronze-flushed when young
Suggested uses
Ornamental shrub, garden borders, specimen plant
Native to
Caucasus region
Fragrance
Fragrant

Care notes

Pruning and caring for Paeonia mollis

Cultivation
Plant herbaceous peonies with the crown no more than 3cm below the surface — deep planting is the commonest reason a clump never flowers. Enrich the ground thoroughly before planting, then leave undisturbed, and support the heaviest doubles before the buds open.
Pruning
Cut herbaceous stems to ground level once the foliage has died back in autumn and clear the debris away, which reduces the risk of peony wilt. Tree peonies need only dead or crossing wood removed after flowering.
Propagation
Divide herbaceous crowns in late autumn into sections carrying at least three dormant buds with roots attached, and only once flowering begins to decline. Tree peonies are grafted or layered; seed is slow and variable.
Pest resistance
Rarely troubled by pests. Ants on swelling buds are drawn to the nectar and do no harm.
Disease resistance
Susceptible to peony wilt in damp seasons; open spacing and prompt removal of affected growth are the best defence.

Frequently asked questions

How do I grow Paeonia mollis?

Plant herbaceous peonies with the crown no more than 3cm below the surface — deep planting is the commonest reason a clump never flowers. Enrich the ground thoroughly before planting, then leave undisturbed, and support the heaviest doubles before the buds open.

Where is the best place to plant Paeonia mollis?

Paeonia mollis prefers full sun to partial shade. It suits sheltered positions.

What soil does Paeonia mollis need?

Paeonia mollis grows best in deep and fertile loam or clay soil. It prefers neutral to slightly alkaline soil. Aim for soil that stays moist but well drained.

How do I prune Paeonia mollis?

Cut herbaceous stems to ground level once the foliage has died back in autumn and clear the debris away, which reduces the risk of peony wilt. Tree peonies need only dead or crossing wood removed after flowering.

Is Paeonia mollis hardy in the UK?

Paeonia mollis has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.

How do I propagate Paeonia mollis?

Divide herbaceous crowns in late autumn into sections carrying at least three dormant buds with roots attached, and only once flowering begins to decline. Tree peonies are grafted or layered; seed is slow and variable.

More in the Paeonia genus

Browse all Paeonia