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|Historical:||Introduced by JELITTO PERENNIAL SEEDS in 2022.|
|Flower Colour:||brilliant heavenly blue|
|Natural Flowering Period:||April - May|
|Winter Hardiness Zones:||Z3 - Z7|
|Height with Flowers:||25 cm|
|Usage:||for the rock garden|
|Grams per 1000 seeds:||20 Gram|
|Seeds per Gram
(does not correspond to the number of plants!):
|Gram to get 1000 plants
(if sown directly into pots etc. you will need a larger quantity):
(9) These seeds germinate rapidly depending on species and origin. If germination does not occur after 3–4 weeks a cooling period of 2–4 weeks is recommended.
(10) For these bigger hard-shelled seeds, mechanical damaging of the shell is helpful for quicker swelling. One method is to grind the seed in dry sharp sand. They can also be treated for several hours in a “softener” (Polyethylenglycol 6000), which is used for the production of plastic material.