Naked-flowering Crocus

Crocus nudiflorus

Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Crocus (KROH-kus) (Info)
Species: nudiflorus (noo-dee-FLOR-us) (Info)



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Drought-tolerant; suitable for xeriscaping

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)

6-9 in. (15-22 cm)


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)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade



Bloom Color:


Bloom Time:

Late Summer/Early Fall

Mid Fall



This plant is resistant to deer

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

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


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

Garberville, California

, Newfoundland and Labrador

Gardeners' Notes:


On Nov 7, 2004, philomel from Castelnau RB Pyrenes
France (Zone 8a) wrote:

Thanks for the fascinating notes Howard_C. Your flowers look a deeper colour than any of the ones I've seen over here in the wild. They have been flowering here since September, and I've seen them from high in the Pyrenees to some relatively low ground near where I live.


On May 16, 2004, Howard_C from St John's, NL wrote:

This plant is very tough, it is the only autumn flowering crocus that we have been able to naturalise in our lawn in St John's, Newfoundland, and I have seen it growing right in the middle of the race track at Warwick (UK) racecourse. Unusually for a crocus, it increases by stolons and can come up several inches away from the original site. Yet it is rarely offered in the trade and is expensive when it is. I imported two corms from Broadleigh Gardens in 1978 at 75p each, and now have literally hundreds of plants.

It is the earliest of the true autmn croci here, appearing in late September and continuing through October. The flowers are quite large and a rich purple with contrasting yellow anthers and stigmas. The typical silver-centred, grassy leaves come up in spring ... read more