Early Crocus, Tommasini's Crocus, Snow Crocus, Tommies

Crocus tommasinianus

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Crocus (KROH-kus) (Info)
Species: tommasinianus (toh-mas-see-nee-AH-nus) (Info)
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Alpines and Rock Gardens


Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


under 6 in. (15 cm)


3-6 in. (7-15 cm)


USDA Zone 3a: to -39.9 C (-40 F)

USDA Zone 3b: to -37.2 C (-35 F)

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:

Sun to Partial Shade

Light Shade



Bloom Color:

Light Blue


Bloom Time:

Late Winter/Early Spring

Mid Winter




Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:


Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

From seed; direct sow outdoors in fall

From seed; stratify if sowing indoors

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds


This plant has been said to grow in the following regions:

Garberville, California

Monroe, Georgia

Mount Prospect, Illinois

Winnetka, Illinois

Warren, Indiana

Hebron, Kentucky

Ijamsville, Maryland

Roslindale, Massachusetts

Pinconning, Michigan

Saint Paul, Minnesota

Sparks, Nevada

Mechanicsburg, Pennsylvania

Salt Lake City, Utah

Leesburg, Virginia

Vancouver, Washington

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Gardeners' Notes:


On Feb 13, 2014, coriaceous from ROSLINDALE, MA wrote:

In the race to be the first flower of the new year, this is always neck-and-neck with common snowdrops (Galanthus nivalis) and Adonis amurensis. Sometimes as early as Valentine's Day in mild winters, but more often the first week of March (here in Boston Z6a).

Silver-gray on the outside when closed, it discloses varying shades of pale violet when it exposes its interior to the sun.

It increases well both by offsets and by seed. Some even claim to find it weedy. It does well in lawns if the first spring mowing is delayed till the foliage begins to die down.

Said to be less attractive to critters than other crocus, though my squirrels must not read the same reference books I do. I've taken to tacking down hardware cloth over new plantings.
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