Autumn Crocus, Fall Crocus
Crocus speciosus 'Oxonian'

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

Category:

Bulbs

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)

Sun Exposure:

Full Sun

Sun to Partial Shade

Danger:

Parts of plant are poisonous if ingested

Handling plant may cause skin irritation or allergic reaction

Bloom Color:

Blue-Violet

Bloom Time:

Mid Fall

Foliage:

Herbaceous

Blue-Green

Other details:

Average Water Needs; Water regularly; do not overwater

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

Regional

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

Garberville, California

Olathe, Kansas

Dracut, Massachusetts

Croton On Hudson, New York

Olympia, Washington

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Nov 29, 2010, oldgal67 from London, ON
Canada wrote:

I live in southwestern Ontario. Zone 5. My bulb supplier sent my order of Autumn Crocus late, in mid October, and I planted them immediately but had little hope they would bloom this year. They started to show shoots in early November and, after a couple of frosts, up came a couple of dozen (from 12 bulbs) gorgeous lilac striped with orange flowers. Everything else in the garden was long finished by then but a small bed full of these gave my garden one last 'hurrah' before winter set in. What a joy they were and lasted until now - the first week in December.