Illustration
Brunner 'Jack Frost'
Brunnera macrophylla 'Jack Frost'
Brunner 'Jack Frost' blooms from April through June.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Brunner 'Jack Frost'
Plant it in part shade. It prefers moderate water. It is hardy in USDA zones 3–8. Expect it to reach about 18 in tall and 24 in wide at maturity, in roughly 2 years (not yet checked).
No toxicity note is on file for Brunner 'Jack Frost'. That is not a clearance: check its safety for people and pets before planting.
What this means
Generated by an earlier AI feature of BloomsEye and not yet checked against outside sources, its scientific name included, so treat every fact above as a starting point. An audit keeps its values consistent with the rest of the library, which is not the same as being right. The source-by-source check is working through the whole library in the open, and a checked plant says so in this row.
When to plant Brunner 'Jack Frost'
Plant Brunner 'Jack Frost' in early spring as soon as the soil is workable, or in early fall at least six weeks before your first frost, so roots establish in cool weather. In zone 5, the middle of its hardy zones 3 to 8, spring means April to June and fall means August or September. Once settled, it blooms from April to June.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 5, the middle of this plant's hardy range, start with zone 5 in April. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does Brunner 'Jack Frost' get?
18 intall5 ft 7 inan adult24 inwideSee Brunner 'Jack Frost' in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.
How far apart to plant Brunner 'Jack Frost'
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Brunner 'Jack Frost' about 24 in apart, center to center, so each plant has room to reach its full width.
Add Brunner 'Jack Frost' to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.
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Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.