Photo by Melody

PlantFiles: Bee Larkspur, Candle Delphinium
Delphinium 'Pacific Giant'

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Delphinium (del-FIN-ee-um) (Info)
Cultivar: Pacific Giant
Additional cultivar information: (aka Pacific Giant Round Table Mix)

One vendor has this plant for sale.

12 members have or want this plant for trade.


36-48 in. (90-120 cm)

18-24 in. (45-60 cm)

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)

Sun Exposure:
Full Sun

All parts of plant are poisonous if ingested

Bloom Color:
White/Near White

Bloom Time:
Mid Summer
Mid Fall


Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
From herbaceous stem cuttings
Allow cut surface to callous over before planting
By air layering

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds
Seed does not store well; sow as soon as possible

Click thumbnail
to view:

By Shelly221
Thumbnail #1 of Delphinium  by Shelly221

By Shelly221
Thumbnail #2 of Delphinium  by Shelly221

By Shelly221
Thumbnail #3 of Delphinium  by Shelly221

By joesinay
Thumbnail #4 of Delphinium  by joesinay

By joesinay
Thumbnail #5 of Delphinium  by joesinay

By Grasmussen
Thumbnail #6 of Delphinium  by Grasmussen


2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive Clary On Jun 21, 2011, Clary from Lewisburg, PA (Zone 6b) wrote:

Sown from seed, it's been the only delphinium of dozens that has survived the climate and pests of my zone 6b garden. After I started liming the garden as well as the lawn, it turned from unremarkable white to vivid blue like joesinay's pics.

Positive Ficurinia On Nov 29, 2008, Ficurinia from Portland, OR wrote:

In our climate here in the Pacific Northwest, this is one of the most amazing plants anyone can have in his or her garden. The blooms grow 4' to 5' and the colors are amazing. If you cut the bloom right as it begins to fade, often it reblooms. My mom had me grow two dozen for her last year and she still goes on and on about them. Luckily, they are even better the next year. (They bloom the first year from seed.)


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

Anchorage, Alaska (2 reports)
Denver, Colorado
Swansea, Massachusetts
Chesterfield, Missouri
Berlin, New Hampshire
Cicero, New York
Portland, Oregon
Lewisburg, Pennsylvania
New Milford, Pennsylvania
Salt Lake City, Utah
Bothell, Washington

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