Illustration
Blanc Double de Coubert Rose
Rosa 'Blanc Double de Coubert'
Also called muslin rose and blanche double de coubert
Blanc Double de Coubert Rose blooms from May through October.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Blanc Double de Coubert Rose
Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 4–9. Expect it to reach about 5.5 ft tall and 4.5 ft wide at maturity, in roughly 3 years (a house reading).
Pets
- Not yet checked for pets.
Lists differ and none is complete. If a pet eats a plant and seems unwell, call a veterinarian or a pet poison helpline.
No toxicity note is on file for Blanc Double de Coubert Rose. 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 Blanc Double de Coubert Rose
Plant Blanc Double de Coubert Rose 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 October.
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 Blanc Double de Coubert Rose get?
5.5 fttall5 ft 7 inan adult4.5 ftwideSee Blanc Double de Coubert Rose 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 Blanc Double de Coubert Rose
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space Blanc Double de Coubert Rose about 4.5 ft apart, center to center, so each plant has room to reach its full width.
Add Blanc Double de Coubert Rose 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
Blanc Double de Coubert Rose'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 October 10, 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.
- Missouri Botanical GardenPlant Finderheight, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases, pests and toxicity
- RHSPlants database (Rosa 'Blanche Double de Coubert' (Ru))height, spread, sun, water, bloom months and color, trait tags, soil, diseases, pests and toxicity
- conservationgardenpark.jvwcd.govConservation Garden Park (Jordan Valley Water Conservancy District, Ut...height, spread, hardiness zones, sun, water, bloom months and color, soil, pests and toxicity
- Plant Addictsthe queue's store pageheight, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil and diseases
- plants.chaletnursery.comChalet Nursery (Wilmette, Illinois), NetPS Plant Finder entry 1320height, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil and diseases
- HelpMeFind Roses'Blanc Double de Coubert' rose, record 2.720height, spread, hardiness zones, sun, bloom months and color, trait tags and diseases
- Heirloom RosesSt. Paul, Oregonheight, spread, hardiness zones, sun, bloom months and color and trait tags
- redbuttegarden.orgRed Butte Garden and Arboretum (Salt Lake City, Utah), species page 527height, spread, hardiness zones, sun, water and bloom months and color
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.