Photo by Melody

PlantFiles: Delphinium
Delphinium requienii

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Delphinium (del-FIN-ee-um) (Info)
Species: requienii (re-kwee-EN-ee-eye) (Info)

Synonym:Delphinium staphisagria var. requienii

One vendor has this plant for sale.

2 members have or want this plant for trade.

View this plant in a garden


36-48 in. (90-120 cm)

9-12 in. (22-30 cm)

USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)

Sun Exposure:
Full Sun
Sun to Partial Shade

Parts of plant are poisonous if ingested

Bloom Color:
Light Blue

Bloom Time:
Mid Summer


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

Soil pH requirements:
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; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds

Click thumbnail
to view:

By Evert
Thumbnail #1 of Delphinium requienii by Evert

By bootandall
Thumbnail #2 of Delphinium requienii by bootandall

By bootandall
Thumbnail #3 of Delphinium requienii by bootandall

By melangemerchant
Thumbnail #4 of Delphinium requienii by melangemerchant


1 positive
1 neutral
No negatives

Gardeners' Notes:

Neutral Mitchella On May 16, 2013, Mitchella from Pownal, ME (Zone 5b) wrote:

I wonder about the zone 4a rating. I grew these from robust seedlings in Buckfield, Maine (zone 4b at the time) and lost all - about a dozen - over the winter. But I'm trying again now that I'm in zone 5b (they are easy to grow from seed). The foliage alone is beautiful, glossy and divided, as you can see in one of the photos.

Positive otter47 On Apr 9, 2012, otter47 from Livermore, CA wrote:

This looks very much like a species delphinium that another member of my garden club passed on to me. It has thicker leaves than most other delphiniums and seems much more resistant to snail attacks. It also self seeds and comes up in unusual spots so it persists as a perennial in that aspect. The varieties of delphinium that are derived from Delphinium elatum and D. grandiflorum are at best short-lived perennials in my garden, although I adore them for their blue flowers.


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

Fremont, California
Livermore, California
Salt Lake City, Utah

We recommend Firefox
Overwhelmed? There's a lot to see here. Try starting at our homepage.

[ Home | About | Advertise | Media Kit | Mission | Featured Companies | Submit an Article | Terms of Use | Tour | Rules | Privacy Policy | Contact Us ]

Back to the top

Copyright © 2000-2015 Dave's Garden, an Internet Brands company. All Rights Reserved.

Hope for America