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Hardiness: USDA Zone 4a: to -34.4 °C (-30 °F) USDA Zone 4b: to -31.6 °C (-25 °F) USDA Zone 5a: to -28.8 °C (-20 °F) USDA Zone 5b: to -26.1 °C (-15 °F) USDA Zone 6a: to -23.3 °C (-10 °F) USDA Zone 6b: to -20.5 °C (-5 °F) USDA Zone 7a: to -17.7 °C (0 °F) USDA Zone 7b: to -14.9 °C (5 °F) USDA Zone 8a: to -12.2 °C (10 °F) USDA Zone 8b: to -9.4 °C (15 °F) USDA Zone 9a: to -6.6 °C (20 °F) USDA Zone 9b: to -3.8 °C (25 °F)
Sun Exposure: Full Sun
Danger: Parts of plant are poisonous if ingested
Bloom Color: Pink Medium Blue Blue-Violet White/Near White
Bloom Time: Late Winter/Early Spring Mid Spring
Foliage: Herbaceous Dark/Black
Other details: Requires consistently moist soil; do not let dry out between waterings
Soil pH requirements: 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline)
Patent Information: Non-patented
Propagation Methods: By dividing rhizomes, tubers, corms or bulbs (including offsets) From seed; direct sow outdoors in fall
Seed Collecting: Allow pods to dry on plant; break open to collect seeds
Planted several years ago, the tiny spring flowers have perennialized and spread widely. They form attractive blue colonies very early. Ideal for naturalizing on lawns in light shade. They easily spread from dried seed pods, and are a nice early complement to spring grass. Reported hardy in Zones 4a-8b.
On Mar 31, 2004, vidamc from Fenton, MO (Zone 6a) wrote:
These are absolutely beautiful, a periwinkle color that catches your eye in the spring. Mine have been in the ground for 3 years and have maybe doubled in their quantity. They look especially lovely around the large rocks in our garden.
On Aug 31, 2001, smiln32 from Oklahoma City, OK (Zone 7a) wrote:
Among the first bulbs to bloom in the spring. Each bulb produces 2-3 narrow, basal leaves and a flower stalk which has several lilac-blue, six-petaled, star-like, upward facing flowers. Mixes well with other early spring blooming bulbs such as daffodils, species tulips and snowdrops (Galanthus).
On Aug 8, 2001, killerdaisy from Dallas, TX (Zone 8a) wrote:
Water well while growing, less when dormant. Best in cooler climates. Nematodes may ruin bulbs; chipmunks and mice may eat bulbs. Do not mox foliage for at least six weeks after blooming.
This plant has been said to grow in the following regions:
, Juneau, Alaska Merced, California Oak View, California Clifton, Colorado Northfield, Illinois Macy, Indiana Hebron, Kentucky Durham, Maine Arlington, Massachusetts Brookline, Massachusetts Dearborn Heights, Michigan Pinconning, Michigan Romeo, Michigan Royal Oak, Michigan Ypsilanti, Michigan Minneapolis, Minnesota Florence, Mississippi Piedmont, Missouri Bridgewater, New Jersey Hamilton, New Jersey Hilton, New York Marcellus, New York Elizabeth City, North Carolina Bucyrus, Ohio Fairport Harbor, Ohio Mount Hood Parkdale, Oregon Salem, Oregon Coopersburg, Pennsylvania Laflin, Pennsylvania Lawrenceburg, Tennessee West Valley City, Utah Bell Hill, Washington Lake Goodwin, Washington Shorewood Hills, Wisconsin Johnstown, Wyoming Riverton, Wyoming