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PlantFiles: Rocket Larkspur
Consolida ambigua 'Giant Imperial Mix'

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Consolida (kon-SO-lih-duh) (Info)
Species: ambigua (am-big-yoo-uh) (Info)
Cultivar: Giant Imperial Mix

Synonym:Consolida ajacis
Synonym:Delphinium ajacis
Synonym:Delphinium ambiguum

One vendor has this plant for sale.

21 members have or want this plant for trade.


18-24 in. (45-60 cm)

9-12 in. (22-30 cm)

Not Applicable

Sun Exposure:
Full Sun

All parts of plant are poisonous if ingested

Bloom Color:
Light Blue
Medium Blue
Dark Blue
White/Near White

Bloom Time:
Late Spring/Early Summer


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:

Propagation Methods:
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
Properly cleaned, seed can be successfully stored

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There are a total of 15 photos.
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1 positive
4 neutrals
No negatives

Gardeners' Notes:

Neutral weedsfree On Jun 11, 2013, weedsfree from Magna, UT (Zone 7a) wrote:

I started off with the dark blue flowering one. Last year, I found a pink one and this year there are a few pink ones. After all the years I have been growing this, last year was the first year I got pink ones. I think this would make the 5th or 6th year. It does self seed very well even if you think you have gotten them all one way or another.
P.S. My understanding about why there is a "not applicable" on the hardiness is because it is an annual. Just about anybody can grow annuals but it will be at different times of the year.

Neutral amacf On Jun 27, 2011, amacf from Hightstown, NJ wrote:

I am confused, too, about cold hardiness for the Rocket Larkspur 'Giant Imperial Mix' being listed as "not applicable". Is this because it simply reseeds itself every year?

Neutral digforrestdig On Oct 24, 2009, digforrestdig from West Palm Beach, FL wrote:

I was just curious to know if this plant could survive the South Florida heat in its page in DG they say it isn't applicable??

Positive Hemophobic On Mar 21, 2009, Hemophobic from Kannapolis, NC wrote:

Right front of this photo in the large square pot are larkspur `Giant Imperial' seedlings which were wintersown this winter.

Neutral rebecca101 On Jul 11, 2007, rebecca101 from Madison, WI (Zone 5a) wrote:

I was somewhat disappointed with the particular mix I got. It turned out to be almost entirely the dark purple color, with only one pale pink and one pale lavender plant. None of the white, or the dark salmon pink that is my favorite. Also the flowers were all singles, although I thought that this cultivar was supposed to be a mix of singles and doubles (?). That may have just been my bad luck. Anyway, it's still a graceful and lovely plant, and I will certainly be growing it again and again, although perhaps I'll try a different cultivar.

Update: I got a selected strain of this mix in 2008, and was thrilled with it. Lots of doubles and lots of gorgeous colors. Beautiful!


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

Glen Avon, California
San Diego, California
Washington, Illinois
Prospect, Kentucky
La Luz, New Mexico
New Bern, North Carolina
Painesville, Ohio
Lancaster, Pennsylvania
Bryan, Texas
Fort Worth, Texas
Fulton, Texas
Hereford, Texas
Mcallen, Texas
Madison, Wisconsin

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