Illustration
Gallery Blue
Lupinus 'Gallery Blue'
Gallery Blue blooms from May through June.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Gallery Blue
Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 4–8. Expect it to reach about 20 in tall and 16 in wide at maturity, in roughly 2 years (not yet checked).
What was checked
Mature height and spread, hardiness zones, sun and the trait tags were checked against named botanical sources for this plant. The bloom months and water need on this page were not, and each fact above says which. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.
When to plant Gallery Blue
Plant Gallery Blue 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 6, the middle of its hardy zones 4 to 8, spring means March to May and fall means August or September. Once settled, it blooms from May to June.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 6, the middle of this plant's hardy range, start with zone 6 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does Gallery Blue get?
20 intall5 ft 7 inan adult16 inwideSee Gallery Blue 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 Gallery Blue
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Gallery Blue about 16 in apart, center to center, so each plant has room to reach its full width.
Add Gallery Blue to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.
Where these facts come from
Gallery Blue's height, spread, hardiness zones, sun and trait tags were checked against 6 published sources on July 29, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources.
- American Meadowsheight, spread, hardiness zones, sun and trait tags
- Nature Hills Nurseryheight, spread, hardiness zones, sun and trait tags
- Plant Addictsheight, spread, hardiness zones, sun and trait tags
- hoffienursery.comHoffie Nurseryheight, hardiness zones, sun and trait tags
- pondsidenursery.comPondside Nurseryheight, spread, hardiness zones and sun
- Missouri Botanical GardenLupinus x hybrida, hybrid-group pagehardiness zones, sun and trait tags
How the checking works, and what each standard covers, is on the verified plants page.
Good to know about Gallery Blue
Curated from university extensions, botanic gardens and other primary sources, with the source named on every note.
Safety
Toxic quinolizidine alkaloids, most concentrated in the seeds and pods. Poisonous to dogs, cats, horses, livestock and people if eaten in quantity. per NC State and Pet Poison Helpline
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Design a garden with this
Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.