In the dry west one of the more common Delphiniums found in dry mountain foot hills is Delphinium andersonii. It starts to show green rosettes of foliage as early as March in the western Sierra foot hills at about the 5000' to 7000' elevations. By early May the 24"-30" wands are making their presence known. Their calling cards are, airy vertical wands studded in brilliant blue blossoms.
This Delphinium is summer dormant, so works well as a companion plant for late bloomers. I use it planted with Opuntias, Cylindropuntias and Spuria Iris. I find it easy to grow and have it seeding around sparingly. It can take very dry conditions in it's dormant state. With adequate spring moisture it puts on a month long display.

Comments
Lori S. (not verified)
Re: Delphinium andersonii
Fri, 05/21/2010 - 3:18pmThe flowers are stunning! Thanks for posting it, John.
Trond Hoy
Re: Delphinium andersonii
Sat, 05/22/2010 - 1:00pmWhen I saw this the color reminded me of one Delphinium I saw on Mt Kenya, East Africa. But the color was a paler blue of that species.
Excuse for the not-so-good picture.
John P. Weiser
Re: Delphinium andersonii
Sat, 05/22/2010 - 4:31pmHoy
I never thought about Delphiniums growing in Africa. Thank you for sharing and educating me.
Your shot reminds me of some of the California desert Delphiniums with pale colored flowers Delphinium inopinum in particular.
Trond Hoy
Re: Delphinium andersonii
Sun, 05/23/2010 - 12:07pmMay the climate have something to do with the color? My shot was from a bush fire area and I saw this species most often in dry often recently burnt areas.
Todd Boland
Re: Delphinium andersonii
Mon, 05/24/2010 - 6:06amJohn, that Delphinium is electric! Trond, that is a funky African species...nice pastel shade. I too never knew delphiniums were native to Africa.
Trond Hoy
Re: Delphinium andersonii
Mon, 05/24/2010 - 8:44amI didn't know either - before I found them iin the alpine zone of Mt Kenya, 3000m+. Here's another picture - not quite sharp and with unsightly dead shrub in the background.