Scientific Name:
Brunnera macrophylla
Pronunciation:
bruh-NEER-uh mack-roe-FILL-uh
Common Name:
Siberian bugloss
Family Name:
Boraginaceae
Plant Type:
Herbaceous perennial
Key ID Features:
Leaves basal, heart-shaped, most blades 8-20cm long x 6-15cm wide, light green, common with interveinal white variegation (B. 'Jack Frost'), or veins and margin are dark green with a wide band of white variegation on the margin (B. 'Dawson’s White'), silver-dominated foliage with contrasting thin green veins (B. 'Silver Heart'); florets like forget-me-nots, about 1cm wide, 5 blue petals with whitish centre ring where they're fused, central dark spot hides the other flower parts, Apr.-May.
Habit:
Dense, Spreading
Form:
Mounded, Oval - horizontal
Texture:
Coarse
Mature Height:
0.4 - 0.7m
Mature Spread:
0.6 - 1.0m
Growth Rate:
Fast
Origin:
Europe, Garden origin
Hardiness Rating:
Zone 3: (-40 to -34 °C)
Exposure:
Part sun/part shade, Filtered shade, Deep shade
Soil/Growing Medium:
Well-drained
Landscape Uses:
Accent plant, Attract beneficial insects, Container planting, Group or mass planting, Perennial border, Specimen plant, Spring interest, Waterside planting, Woodland margin
Additional Info:
Google. Culivars shown or on campus may include B. ‘Jack Frost’, and B. ‘Dawson’s White’, and B. 'Silver Heart'. Compare to B. ‘Looking Glass’.
Leaf Morphology:
Form:
Simple
Arrangement:
Basal
Texture/Venation:
Soft flexible
Surfaces:
Rugose, Pubescent
Colour in Summer:
Green, The leaf images are of Brunnera macrophylla ‘Dawson’s White’ with large botchy variegated leaves. 'Jack Frost' has a almost silvery white look to teh leaves. 'Jack Frost is located on the west side of the Cypress hedge in GBE.
Colour in Fall:
Green-yellow
Shapes:
Ovate
Apices:
Acute
Bases:
Cordate, Sagittate
Margins:
Ciliate, Sinuate
Additional Info:
Leaves variegated
Inflorescence Type:
Cyme, Floriferous, Panicle-like
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Rotate/stellate
Ovary Position:
Superior
Colour (petals):
Showy, Blue
Flower Scent:
None
Flower Time at Peak:
Apr, May
Fruit Type:
Schizocarp
Fruit Colour:
Brown
Fruiting Time:
Jul, Aug
Additional Info:
Ovary separates into four tiny mericarps or "nutlets"
Bark or Stem Colour:
Organ Modifications:
Rhizomes
Propagation:
Division - below ground parts
Maintenance:
Low
Pest Susceptibility:
Slugs or snails (Pest resistant, Disease resistant, Deer resistant, Rabbit resistant)
Course(s):
- HORT 2355
- Level 4 Apprenticeship
Location(s):
- (BGR) Boulevard by Glover Road
- (BUG) BUG garden : species, cv. Silver Heart
- (GRB) GRass Bed
- (GRBW) GRass Bed West
- (HPZ) Horticulture PlaZa : cv. ‘Jack Frost’
- (WLG) WoodLand Garden