Delphinium grandiflorum Cheer Blue

Gold Medal Approved Novelty

A popular cut flower and landscaping item particularly in Japan, Delphinium grandiflorum F1 is now also available in a dwarf version. Cheer Blue is a brand new variety with shorter stems and upwards directed flowers without spurs, making this F1 hybrid from seed an excellent candidate for patio planters and first/middle line bedding.
The new, mid-blue hue of the flowers is an exciting enrichment in the existing blue colour range. A Gold Medal stands for a breakthrough in breeding. The Fleuroselect-judges described Cheer Blue’s flower colour as ‘innovative’ and ‘striking’ and praised the uniformity and garden performance of this new Delphinium. With its shorter spikes and calming colour, Cheer Blue adds tranquillity to your outdoor space.

Cheer Blue is also the recipient of the All-America Selections award for performance in North American trials. 

Market Value

The range of true blue pot and bedding plants being limited, Cheer Blue is a welcome addition to the existing assortment. This F1 hybrid has growing vigour and a high degree of uniformity which requires little production time. The absence of spurs ensures upwards blooming flowers that open well. Retailers will warmly welcome Cheer Blue with its shorter spikes as an exciting newcomer to the blue colour range. Consumers will love the bright flowers and the peaceful atmosphere Cheer Blue brings to containers and borders. Cheer Blue, a shorter Delphinium to enter a new market segment.

Background Information

Delphinium grandiflorum is a genus of the Ranunculaceae family and is commonly known as larkspur. With the breeding of Cheer Blue, Japanese breeder MIYOSHI & CO., LTD. has succeeded in turning a popular landscape item and cut flower into a variety suited for containers and bedding.

Technical information

Single, 3 cm diameter
Annual, F1 hybrid, diploid
Bedding Plant
Approx. 1000 seeds per gram; germination rate 90%
Height 40 cm, spread 25 cm

Sow in the garden at 20°C in March/April. Keep the soil moist. Grow at 15°C in fertile, well-drained soil and transplant in April/May.

Plant out 12 plants per m2 at 20 cm-20 cm planting distance in a sunny spot or 1 plant in a 9 cm pot.

Registration details

Miyoshi & Co. Ltd.
Entry number:
Protection Period:
8 years
Expiry Date: