Illustration
American Goldfinch False Indigo
Baptisia 'American Goldfinch'
Also called american goldfinch baptisia
American Goldfinch False Indigo blooms from May through June.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing American Goldfinch False Indigo
Plant it in full sun. It prefers low water. It is hardy in USDA zones 4–9. Expect it to reach about 3.5 ft tall and 4.5 ft wide at maturity, in roughly 3 years (a house reading).
What was checked
Mature height and spread, hardiness zones, sun, water, bloom months and color and the trait tags were checked against named botanical sources for this plant, with what the sources could not settle written down; years to mature size rests on a recorded house rule where no publisher states one, and is marked so; its common name and alternate names have not been checked yet. Each fact above carries its own mark. 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 American Goldfinch False Indigo
Plant American Goldfinch False Indigo 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 9, 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 American Goldfinch False Indigo get?
3.5 fttall5 ft 7 inan adult4.5 ftwideSee American Goldfinch False Indigo 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 American Goldfinch False Indigo
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space American Goldfinch False Indigo about 4.5 ft apart, center to center, so each plant has room to reach its full width.
Add American Goldfinch False Indigo 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
American Goldfinch False Indigo's height, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases, pests and toxicity were checked against 8 published sources on September 26, 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.
- wilsonbrosgardens.comWilson Bros Gardensheight, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases and pests
- Walters Gardensthe breederheight, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil and diseases
- Plant Addictsheight, spread, hardiness zones, sun, water, bloom months and color, trait tags and soil
- US plant patent (Google Patents)Walters Gardens, the breeder's registrationheight, spread, hardiness zones, water, bloom months and color, trait tags, soil and diseases
- pridescorner.comPrides Corner Farmsheight, spread, hardiness zones, sun, water, bloom months and color and trait tags
- Chicago Botanic GardenPlant Finderhardiness zones, sun, water, bloom months and color, trait tags and pests
- Plant Delights Nurseryheight, spread, hardiness zones, sun and bloom months and color
- NC State ExtensionPlant Toolboxsoil, diseases, pests and toxicity
How the checking works, and what each standard covers, is on the verified plants page.
Good to know about American Goldfinch False Indigo
Curated from university extensions, botanic gardens and other primary sources, with the source named on every note.
Safety
Mildly toxic if eaten. All parts hold quinolizidine alkaloids; severity is low, with nausea, vomiting and diarrhea only if eaten in quantity. per NC State
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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.