centaurée Blue Jubilee Gem
$ 4,75
Centaurea cyanus, Asteraceae
blueberry, bell-breaker
Blue Jubilee Gem' is a double-flowered variety of blue knapweed. Less old (and less rare) than our 'Emperor WilliamHowever, it was already popular in 1937, when it won the silver medal at the All-American Selections. A good choice for bouquets, knapweed flowers are also edible and medicinal. They are especially useful in cases of eye inflammation and irritation, as well as for decongesting bronchial tubes and soothing coughs. An easy-to-grow annual that tolerates drought once established, and can be reseeded. 60 cm high.
about 140 seeds
Locally-sourced, handcrafted seeds from the Jardin du Banquetin St-Germain-de-Kamouraska
Out of stock
Sow on site in spring, as soon as the soil can be worked. Leave 5 cm between seeds, then thin to 15 cm for optimum development. Germination will take 7 to 12 days, between 15°C and 18°C. This knapweed likes cool nights, so don't worry!
We also have the knapweed and the centaury Emperor William
photo: Jacinthe Briand-Racine, Jardin du Banquet
| # of the lot for sale | JA21 |
|---|---|
| Germination rate for 2024 of the lot on sale | 89% |
| Test germination conditions | Darkness, 15ºC to 18ºC |
| Number of seeds per bag | 140 |
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