Species Crocus, Autumn Crocus, Fall Crocus
Crocusspeciosus

Family: Iridaceae (eye-rid-AY-see-ee)
Genus: Crocus (KROH-kus)
Species: speciosus (spee-see-OH-sus)

Synonym:Crocus multifidus

Category

Bulbs

Water Requirements

Average Water Needs; Water regularly; do not overwater

Sun Exposure

Full Sun
Sun to Partial Shade

Foliage

Unknown

Foliage Color

Blue-Green

Height

under 6 in. (15 cm)

Spacing

3-6 in. (7-15 cm)
6-9 in. (15-22 cm)

Hardiness

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)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)

Where to Grow

Unknown

Danger

All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color

Blue-Violet
Lavender

Bloom Characteristics

Unknown

Bloom Size

Unknown

Bloom Time

Mid Fall

Other details

Unknown

Soil pH requirements

6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information

Non-patented

Propagation Methods

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

Seed Collecting

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed