Illustration
Hot Papaya
Echinacea 'Hot Papaya'
Hot Papaya blooms from July through September.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Hot Papaya
Plant it in full sun. It prefers low water. It is hardy in USDA zones 4–9. Expect it to reach about 2.5 ft tall and 1.5 ft wide at maturity, in roughly 2 years (not yet checked).
No toxicity note is on file for Hot Papaya. That is not a clearance: check its safety for people and pets before planting.
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 Hot Papaya
Plant Hot Papaya 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 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 Hot Papaya get?
2.5 fttall5 ft 7 inan adult1.5 ftwideSee Hot Papaya 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 Hot Papaya
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Hot Papaya about 1.5 ft apart, center to center, so each plant has room to reach its full width.
Add Hot Papaya 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
Hot Papaya's height, spread, hardiness zones, sun and trait tags were checked against 11 published sources on July 30, 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.
- Perennial Resource (Walters Gardens)Walters Gardens, Inc.height, spread, hardiness zones, sun, years to mature size and trait tags
- Perennials.com (Heritage Perennials)Heritage Perennials (perennials.com)height, spread, hardiness zones, sun, years to mature size and trait tags
- gardencrossings.comGarden Crossingsheight, spread, hardiness zones, sun and trait tags
- horsfordnursery.comHorsford Gardens and Nurseryheight, spread, hardiness zones, sun and trait tags
- Missouri Botanical GardenPlant Finderheight, spread, hardiness zones, sun and trait tags
- NC State ExtensionEchinacea purpurea, species page with a 'Hot Papaya' cultivar entryheight, hardiness zones, sun, years to mature size and trait tags
- Plant Addictsheight, spread, hardiness zones, sun and trait tags
- Proven Winnersheight, spread, hardiness zones, sun and trait tags
- Sooner Plant Farmheight, spread, hardiness zones, sun and trait tags
- colesvillenursery.comColesville Nurseryheight, hardiness zones, sun and trait tags
- US plant patent (Google Patents)United States Plant Patent PP21,022 (breeder's registration, Arie Blom...height, spread, years to mature size and trait tags
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.