Illustration
Coral Vinca
Catharanthus roseus
Coral Vinca blooms from June through October.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Coral Vinca
Plant it in full sun. It prefers low water. Expect it to reach about 12 in tall and 12 in wide at maturity, in roughly 1 year (a house reading).
Is Coral Vinca toxic to dogs or cats?
- Listed as toxic to dogs and cats by NC State Extension.
- Listed as poisonous to people by NC State Extension.
Lists differ and none is complete. If a pet eats a plant and seems unwell, call a veterinarian or a pet poison helpline.
What was checked
Nine facts were checked against named botanical sources, each recorded beside the sources that carried it: mature height and spread, hardiness zones, sun, water, bloom months and color, the trait tags, and years to mature size, which rests on a recorded house rule where no publisher states one and is marked so. Soil, diseases, pests, toxicity and the plant's own names have not yet been read for this plant, and its trait tags are the ones a feature uses rather than every word a page prints. 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 Coral Vinca
Wait until all danger of frost has passed, then plant out Coral Vinca into warm soil; in most zones that means late spring. Planted then, it flowers from June to October.
Month-by-month timing for your zone is on the planting calendar. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does Coral Vinca get?
12 intall5 ft 7 inan adult12 inwideSee Coral Vinca 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 Coral Vinca
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Coral Vinca about 12 in apart, center to center, so each plant has room to reach its full width.
Add Coral Vinca 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
Coral Vinca's height, spread, hardiness zones, sun, water, bloom months and color and trait tags were checked against 7 published sources on October 28, 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.
- NC State Extensionheight, spread, hardiness zones, sun, water, bloom months and color and trait tags
- Missouri Botanical Gardenheight, spread, hardiness zones, sun, water and bloom months and color
- Clemson Home and Garden Information CenterClemson Cooperative Extensionheight, spread, sun, bloom months and color and trait tags
- meadowridgeinc.comMeadowridge, Inc.height, spread, water, bloom months and color and trait tags
- University of Illinois Extensionheight, sun, water, bloom months and color and trait tags
- depts.ttu.eduTexas Tech Universityheight, spread, hardiness zones, sun and water
- University of Florida IFASUF/IFAS Extensionheight, spread, sun, water and trait tags
How the checking works, and what each standard covers, is on the verified plants page.
Good to know about Coral Vinca
Curated from university extensions, botanic gardens and other primary sources, with the source named on every note.
Safety
All parts are poisonous if eaten; the toxic principle is vinca alkaloids. ASPCA lists it toxic to dogs, cats and horses, with vomiting, seizures and worse. per ASPCA
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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.