Illustration
Athena Gold False Sunflower
Heliopsis helianthoides 'Inhelsogia'
Also called athena gold and sole giatto
Athena Gold False Sunflower blooms from July through September.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Athena Gold False Sunflower
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 20 in wide at maturity, in roughly 2 years (a house reading).
No toxicity note is on file for Athena Gold False Sunflower. That is not a clearance: check its safety for people and pets before planting.
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 Athena Gold False Sunflower
Plant Athena Gold False Sunflower 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 July to September.
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 Athena Gold False Sunflower get?
20 intall5 ft 7 inan adult20 inwideSee Athena Gold False Sunflower 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 Athena Gold False Sunflower
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Athena Gold False Sunflower about 20 in apart, center to center, so each plant has room to reach its full width.
Add Athena Gold False Sunflower 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
Athena Gold False Sunflower'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.
- all-americaselections.orgAll-America Selections (2026 AAS Perennial Winner page, Heliopsis Sole...height, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases and pests
- Walters Gardensthe US introducer; Zeeland, Michigan; it runs the Proven Winners peren...height, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases and pests
- Plant Addictsthe store the queue came fromheight, spread, hardiness zones, sun, water, bloom months and color, soil and diseases
- Missouri Botanical GardenSPECIES page, Heliopsis helianthoidesheight, sun, water, bloom months and color, soil and diseases
- Proven Winnersthe brand; one voice with Walters Gardensheight, spread, hardiness zones, water, bloom months and color and soil
- whiteflowerfarm.comWhite Flower Farm (Litchfield, Connecticut)height, spread, sun, bloom months and color and trait tags
- Plants For A Futuretrait tags, soil, pests and toxicity
- NC State ExtensionSPECIES page, Heliopsis helianthoidespests
How the checking works, and what each standard covers, is on the verified plants page.
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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.