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Dutch crocus
Habit (mature) · Algirdas / Wikimedia Commons · CC BY-SA 3.0
Limited coverage
Dutch crocus
Crocus vernus
One of the first flowers of spring — a low-growing corm that pushes goblet-shaped purple or white blooms straight out of cold, often still-snowy ground in early spring. Many garden hybrids ("Dutch crocus," "giant crocus," "spring crocus") descend from this alpine European species, which the Missouri Botanical Garden notes is native to the Pyrenees, Alps, and Carpathians. Each flower lasts only about three weeks, but corms naturalize and spread in sunny lawns and woodland edges over time.
Review: Source-backed
Climate fit: moderate (52/100)
Border
Filler
Light
Full sun / Part shade
Water
Moderate water
Mature size
3-6" tall · 4" apart
Hardy in zones
3a-8b
brutally cold to frosty winters
Summer heat range
Cool-Warm
cool to warm summers Interim Plotwright tier until the plant AHS range is authored.
Native in Illinois
No
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Cold hardiness
Now
Zone 6b
USDA
Chicago, IL · 1991-2020 average annual coldest day
Source: USDA Plant Hardiness Zone Map 2023 (1991-2020 climatology) via ArcGIS FeatureServer
Well-suited
2050
Zone 7b
Plotwright
Your zone + climate-model shift · SSP3-7.0 (regional rivalry)
Well-suited
In plain terms: cold winters — coldest nights typically around -3°F.
Well-suited today and still thriving in 2050.
Heat tolerance
Loading current AHS heat-zone and plant heat-fit data at your coordinates…
Sources & citations
Cite this page
For lesson plans, articles, or research that uses this page. To cite a single upstream fact instead, use its specific source listed below.
Plotwright. (2026, May 17). Dutch crocus (Crocus vernus). Retrieved 2026, June 5, from https://plotwright.garden/plants/crocus
Sources for every fact
Every fact on this page traces to a source. 18 fields cited18 source-backed.
Missouri Botanical Garden PlantFinder
Botanical research database
Backs 17 fields
Identity
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Wikimedia Commons
Photo · CC BY-SA 3.0
Backs 1 field
Image
Community photos
The photos above are our reviewed reference set, curated for accuracy.
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