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NC State Extension

Delphinium ‘Clear Springs Midblue’

Trial: Annual

Years Trialed: 1998

Good Qualities

Nice color (3); Strong stems – did not need staking (2); Nice form; Uniform; Performed well despite late start and very high temperatures; Excellent germination in quantity of seedlings for delphiniums; Stems straight; Good quality and quantity for first year; Hardy plant; Wind tolerant.


Didn’t germinate well (3); Needed support netting-a lot of them blew over; 58% germination.


I will certainly try this again just from our experience with other Clear Springs cultivars- Our lavender trial from last year over wintered and has blossomed all summer. It has nice tall cuts up to 24″ and sets one set of blooms after another even in our heat and drought. Probably made 10 to 12 cuts per plant; We planted in crates in an open sided, covered hoop house; We never thought we could grow Delphinium in our hot summers, but this proved us wrong. We had a very hot early start to summer and it hung in there. We will try to get it in earlier next year. – I don’t know if the positive market appreciation was because we were able to grow them at all, or the sheer beauty of a long full stem; Next year expect longer and more stems than this year since these are hardy perennials; Should be a great one, we will watch as it matures next season; Similar to ‘Magic Fountain’; My customers prefer the ‘Pacific Giants’, as they are taller and not as compact. I found these hard to work into bouquets, as they were short and fat.

Trial Data

Delphinium ‘Clear Springs Midblue’
Yield (stems/plant) Stem Length (inches) Market Appreciation Rating¹ Repeat Again Rating¹ Ease of Cultivation Rating¹
Average 1.4 25.8 4.5 4.6 4.3

¹1 to 5 scale, with 5 being the best. Market ratings are based on sales to wholesalers, retailers, or final consumers direct.


PanAmerican Seed
P.O. Box 438
West Chicago, IL 60186

Page Last Updated: 8 years ago
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