Photo by Melody

PlantFiles: Nuttall's Larkspur, Low Larkspur, Upland Larkspur, Two-toned Larkspur, Twolobe Larkspur
Delphinium nuttallianum

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Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Delphinium (del-FIN-ee-um) (Info)
Species: nuttallianum (nut-al-ee-AH-num) (Info)

Synonym:Delphinium nelsonii
Synonym:Delphinium sonnei
Synonym:Delphinium nelsonii subsp. utahense
Synonym:Delphinium nuttallianum var. fulvum
Synonym:Delphinium nuttallianum var. levicaule

3 members have or want this plant for trade.

Category:
Alpines and Rock Gardens
Perennials

Height:
18-24 in. (45-60 cm)

Spacing:
6-9 in. (15-22 cm)

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)

Sun Exposure:
Partial to Full Shade

Danger:
Parts of plant are poisonous if ingested

Bloom Color:
Dark Blue
Violet/Lavender
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer

Foliage:
Herbaceous

Other details:
Average Water Needs; Water regularly; do not overwater
This plant is attractive to bees, butterflies and/or birds

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 the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

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By kennedyh
Thumbnail #1 of Delphinium nuttallianum by kennedyh

By kennedyh
Thumbnail #2 of Delphinium nuttallianum by kennedyh

By Xenomorf
Thumbnail #3 of Delphinium nuttallianum by Xenomorf

By Xenomorf
Thumbnail #4 of Delphinium nuttallianum by Xenomorf

By Xenomorf
Thumbnail #5 of Delphinium nuttallianum by Xenomorf

By Xenomorf
Thumbnail #6 of Delphinium nuttallianum by Xenomorf

By Xenomorf
Thumbnail #7 of Delphinium nuttallianum by Xenomorf

There are a total of 8 photos.
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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive hillfarm On Nov 27, 2010, hillfarm from Quesnel, BC (Zone 4a) wrote:

Very early blooming wildflower of dry hillsides in the interior Cariboo region of British Columbia. Vibrant cobalt blue; like nothing else in the wild in this area. Very variable; tall or short; densely flowered or widely spaced. All are lovely. Would definitely be good in a dry rock garden type setting; might get lost in the mixed border.

Regional...

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

Sedona, Arizona
Applewood, Colorado
Laporte, Colorado
Salem, Oregon



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