Illustration
Dutch Iris Sapphire Beauty
Iris 'Sapphire Beauty'
Dutch Iris Sapphire Beauty blooms from May through June.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing Dutch Iris Sapphire Beauty
Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 5–9. Expect it to reach about 24 in tall and 4 in wide at maturity, in roughly 2 years (a house reading).
Is Dutch Iris Sapphire Beauty toxic to dogs or cats?
- Listed as toxic to dogs and cats by NC State Extension, Pet Poison Helpline and Royal Horticultural Society.
- Listed as poisonous to people by NC State Extension and Royal Horticultural Society.
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 Dutch Iris Sapphire Beauty
Dutch Iris Sapphire Beauty is a fall-planted bulb: get it in the ground 6 to 8 weeks before the ground freezes, typically October or November in zone 7, the middle of its hardy zones 5 to 9. It pays you back the following May to June.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 7, the middle of this plant's hardy range, start with zone 7 in October. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does Dutch Iris Sapphire Beauty get?
24 intall5 ft 7 inan adult4 inwideSee Dutch Iris Sapphire Beauty in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.
Where these facts come from
Dutch Iris Sapphire Beauty's height, spread, hardiness zones, sun, water, bloom months and color and trait tags were checked against 8 published sources on October 20, 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.
- Plant Addictsheight, spread, hardiness zones, sun, water, bloom months and color and trait tags
- netherlandbulb.comNetherland Bulb Companyheight, hardiness zones, sun, water and bloom months and color
- promessedefleurs.iePromesse de fleursheight, spread, hardiness zones, water and bloom months and color
- dutchbulbs.co.ukJ Parker Dutch Bulbs (Wholesale)height, spread and bloom months and color
- RHSRoyal Horticultural Societyheight, sun and bloom months and color
- gertens.comGertens Garden Centerheight, spread and hardiness zones
- wiki.irises.orgAmerican Iris Society Iris Encyclopedia, quoting KAVBbloom months and color and trait tags
- NC State ExtensionPlant Toolbox, Dutch iris hybrid pagesun and water
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.