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Brunnera macrophylla 'Jack Frost' (Ships in Spring)
Siberian Bugloss
Brunnera macrophylla ‘Jack Frost’ is a standout shade perennial known for its shimmering silver leaves etched with crisp green veining. Its heart‑shaped foliage brightens low‑light areas, while airy clusters of tiny sky‑blue flowers appear in mid‑spring for a soft, forget‑me‑not effect. Compact and clump‑forming, it adds season‑long texture to woodland gardens, borders, and containers.
Thriving in part to full shade, ‘Jack Frost’ prefers moist, well‑drained soil and steady moisture to keep foliage looking fresh. Deer‑ and rabbit‑resistant and hardy in zones 3–8, it’s a reliable, low‑maintenance choice for adding brightness and elegance to shaded landscapes.
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Growing and Maintenance Tips for Brunnera macrophylla 'Jack Frost' (Ships in Spring)
Planting: Best planted in spring or fall during mild weather. Set crowns just below the soil surface and space plants 18 to 30 inches apart, depending on variety.
Location: Thrives in partial to full shade; protect from hot afternoon sun to prevent leaf scorch.
Soil: Prefers rich, well-drained soil with a pH of 6.0–7.0. Amend with compost or organic matter before planting.
Watering: Keep soil consistently moist but not soggy. Brunnera struggles in dry or overly wet conditions.
Spacing: Allow room for clump expansion—plants spread slowly via rhizomes.
Fertilization: Apply compost or a balanced fertilizer in early spring to support foliage and bloom.
Pruning: Remove spent flower stalks and trim back foliage in late winter or early spring.
Propagation: Divide clumps every 3 to 4 years in spring or fall to maintain vigor.
Pest & Disease: Generally pest-free; avoid poor drainage to prevent root rot.
Companion Planting: Pairs beautifully with hostas, ferns, and hellebores in woodland or shade gardens.
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