Delphinium ‘Guardian Blue’
Years Trialed: 2003, 2005
Nice iridescent purple-blue color (7); Strong stems (3); This color delphinium stole the show every week!, intense blue with lavender shading was vibrant and beautiful, I sold every stem of this every single week, this will replace Bluebird in my future plantings; Strong stems; Flower stems are full and very well accepted; Good for everyday design; Large flower; Great plant, nice stem length; Plant forms a healthy rosette; Very happy to get bloom in same season; Plants grew vigorously and weren’t reluctant to bloom well in the first season.
Bright blue flowers (4); Long stems (2); Very tall stems; Much desired by florists and market customers; We really like the Guardian series and have them planted; Very uniform; Fast, good germination, big enough stems; Strong stems, good plant size.
Poor germination (3); Short for delphiniums but expect it to be taller next year; Lost several transplants to cold after planting to field, stems could be longer; We stratified the seed on all delphiniums for 4 weeks prior to setting out in the greenhouse; Plants and stems never grew very tall, maybe because of weather and fertility; Lost too many in plug trays; Started too late, no blooms; Some mildew as the crop aged; Needs a cooler, earlier start than I can give it, only time will tell if plants set out this fall will be productive next spring.
Heat in Texas can be too much!; Florists like more length; This particular ‘Guardian’ did not germinate well, or thrive – especially compared to the other 2 trial varieties and also the ‘Guardian’ we had in our main cutting area, not really sure what the issue was; Individual flowers very large (almost too large for design) for length of stem; We would have had better luck with this in the fall.
Change water every day. See separate postharvest report in this issue for results from NC State University postharvest evaluations.
|Yield (stems/plant)||Stem Length (inches)||Market Appreciation Rating¹||Repeat Again Rating¹||Ease of Cultivation Rating¹||Average Spacing (in2)|
|Range of Responses||1-8||17-36||4||2-5||2-5||1-5||3-5||36-216|
|Yield (stems/plant)||Stem Length (inches)||Market Appreciation Rating¹||Repeat Again Rating¹||Ease of Cultivation Rating¹||Average Spacing (in2)||Average Postharvest Life (days)|
|Range of Responses||1-12||18-40||–||4-5||3-5||3-5||2-5||36-324||5-7|
¹1 to 5 scale, with 5 being the best. Market ratings are based on sales to wholesalers, retailers, or final consumers direct.
P.O. Box 438
West Chicago, IL 60186