An educational awards program of the Elisabeth Carey Miller Botanical Garden

Brunnera macrophyllaJack Frost

variegated Siberian bugloss

Image © Richie Steffen/Great Plant Picks
Image © Lynne Thompson/Great Plant Picks
Image © Al Dodson (www.aldodson.com)

Printer-friendly Fact Sheet

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Outstanding Qualities This is one of the best perennials to brighten the woodland garden. The large, heart-shaped, silver leaves are laced with green veins, producing an eye-catching effect. From late winter to early spring, delicate sprays of azure blue flowers—reminiscent of forget-me-nots—appear. Like all Brunnera, this is easy to grow and forms a full, vigorous clump. It’s also slug resistant—a bonus in the woodland garden. Combine ‘Jack Frost’ with ferns, hostas, rhododendrons and hydrangeas in the shade garden. It also contrasts strikingly with the narrow leaves of Iris foetidissima ‘Variegata’ (VARIEGATED GLADWYN IRIS) or ornamental sedges, such as Carex ‘Ice Dance’.
Culture ‘Jack Frost’ grows best in part or full shade; keep it out of hot afternoon sun to prevent scorching of the foliage. It tolerates a wide range of garden soils and a minimal amount of summer watering, but the ideal is well-drained, humus-rich soil with average moisture. Cut it back to the ground in fall.
Growing Habit This deciduous, mounding perennial reaches 24 inches high by 30 inches wide.
Hardiness USDA zones 3 to 8