Brunnera macrophylla 'JACK FROST'

Brunnera macrophylla 'JACK FROST'
Siberian Bugloss

SIZE/TYPE	low perennial
USUAL HEIGHT	0.2-0.3m
USUAL WIDTH	0.3-0.4m
LEAVES	deciduous broadleaf
COLOUR OF LEAVES	varigated:silver and green
FLOWERS	showy
COLOUR OF FLOWERS	sky blue
BLOOMING TIME	April - May
LOCATION	semi-shade to shade
USDA zone (lowest)	4 (down to -34°C)
WINTER PROTECTION
FOR ZONE 5+6
FOR ZONE 7
BELONGS TO CATEGORIES	Perennials

Brunnera is rhizomatous perennial with soft, hairy, hear-shaped leaves. Variety Jack Frost has large, silver leaves with strong, dark green veins and clearly defined margins. Clusters of forget-me-not like blue flowers appear on about 20cm tall stalks in early to mid spring.

It does best in semi-shade or full shade which brightens up with its uniquely coloured leaves. It needs cool, humus-rich, well-drained, moist soil. Fully hardy to at least -34°C, possibly more (USDA zone 4).

Last update 22-01-2008

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GLOSSARY

STANDARD QUALITY - Plants of this group are 1st class quality with number of branches and overall density adequate to their size and age, considering they were container grown.
DE LUXE QUALITY - This label guarantees a luxurious quality of manually selected plants that, compared to their height and age, are exceptionally dense and beautiful.
EXTRA - These plants are usually mature and bigger specimens with exceptional overall appearance.
STANDARD (as described in the plant form) means a tree with a trunk of 190-210 cm and a crown at the top, unless specified differently. The commercial size for trees is their girth measured in the height of 1m from ground.
HOBBY - These plants are of the same quality as our standard-quality plants but younger and therefore cheaper.
SHRUB - a woody plant with branches growing bushy from the ground level.
HALF-STANDARD or MINI-STANDARD - a small tree with shorter trunk, its size is usually specified.
FEATHERED - These are trees with branches growing already from the base of the trunk and up along the stem.
GRASSES and PERENNIALS - Sizes given usually read the diameter of the pot or the clump, as specified.