Brunnera mac. 'Jack Frost' (Siberian Bugloss) — Clump-forming

Overview

Brunnera mac. 'Jack Frost' is a plant with a clump-forming habit in the genus Brunnera, part of the Boraginaceae family, with heart-shaped, often variegated foliage. Brunnera mac. 'Jack Frost' grows best in partial shade, and tolerates loam soils and neutral pH. Its UK hardiness is rated H7. Suggested uses include ground cover and underplanting.

About

Brunnera mac. 'Jack Frost' is a clump-forming perennial in the Boraginaceae, grown primarily for its heart-shaped, often variegated foliage. It performs best in partial shade on moist, neutral loam and favours a north-facing, sheltered position. Flowering occurs in April to May and the foliage remains the principal garden feature thereafter. Suitable uses include ground cover and underplanting beneath shrubs.

Growing conditions

Best soil and position for Brunnera

Sunlight: Partial shade
Soil type: Loam
Soil pH: Neutral
Soil moisture: Moist
Aspect: North-facing
Exposure: Sheltered
UK hardiness: H7

Plant details

Brunnera mac. 'Jack Frost' size, habit and characteristics

Habit: Clump-forming
Foliage: Heart-shaped, often variegated
Suggested uses: Ground cover, underplanting

Care notes

Pruning and caring for Brunnera mac. 'Jack Frost'

Propagation: Division
Pest resistance: Generally pest-free
Disease resistance: Generally disease-free

Frequently asked questions

Where is the best place to plant Brunnera mac. 'Jack Frost'?

Brunnera mac. 'Jack Frost' prefers partial shade. It suits sheltered positions.

What soil does Brunnera mac. 'Jack Frost' need?

Brunnera mac. 'Jack Frost' grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist.

Is Brunnera mac. 'Jack Frost' hardy in the UK?

Brunnera mac. 'Jack Frost' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.

How do I propagate Brunnera mac. 'Jack Frost'?

Division.

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