
Common Name: Jack Frost Bugloss, Siberian Bugloss
Brunnera macrophylla ‘Jack Frost’ — commonly known as Jack Frost Siberian Bugloss — is a standout shade perennial celebrated for its silvery foliage with bold green veining and clouds of bright blue, forget-me-not–like flowers in spring. The striking leaves provide season-long interest and brighten shady gardens long after bloom. Key features Width / spread: 1.5–2 ft Height: 12–18 in (flower stems may reach ~18–20 in) Flower color: Clear sky blue Bloom time: Early to mid spring Foliage: Silver with prominent green veins; heart-shaped Form: Clumping, mounded perennial Life cycle: Herbaceous perennial Growing conditions Sun: Part shade to full shade (tolerates morning sun; avoid hot afternoon sun) Soil: Moist, well-drained; rich in organic matter Water: Moderate; consistent moisture preferred Hardiness: Zone Low: 3a Zone High: 8b Landscape use Woodland and shade gardens Perennial borders Underplanting for trees and shrubs Groundcover accents in shade Containers for shaded patios Notes One of the most popular Brunnera cultivars for foliage impact Foliage remains attractive through summer with adequate moisture Excellent contrast with hostas, ferns, and hellebores Generally deer and rabbit resistant Divide in early spring if needed Branding / horticultural information Botanical name: Brunnera macrophylla ‘Jack Frost’ Common name: Jack Frost Siberian Bugloss Plant group: Shade perennial Awards: Perennial Plant of the YearŽ (2012) Market use: Premium foliage perennial for brightening shade gardens
| Plant Type: | Perennial |
| Width: | 18" |
| Height: | 12-18'' |
| Fragrant: | No |
| Growth Rate | Moderate |
| Zone: | 3 - 8 |
| Deer Resistant: | Yes |
| Salt Tolerant: | No |
| Drought Tolerant: | No |
| Exposure: | Partial Shade, Full Shade |
| Bloom Time: | Late Spring, Early Summer, Spring |
| Landscape/Use: | Container, Specimen, Groundcover |
| Shape: | Clump |
| Soil Type | Loamy |
| Flower Color: | Blue |
| Fall Color: | Dark Green, Silver, White |