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Centaurea jacea ssp jacea

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Approximately 450.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.

1 packet for 6 Euros
in stock *    Centaurea jacea ssp jacea    *

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are available for immediate shipping
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1 gram for 6 Euros
in stock *    Centaurea jacea ssp jacea    *

Stock items purchased using the shopping cart
are available for immediate shipping




Centaurea jacea ssp jacea
10 gram for 10 Euros
available for preorder


Centaurea jacea ssp jacea
100 gram for 48 Euros
available for preorder


Centaurea jacea ssp jacea
25 gram for 49 Euros
available for preorder


Centaurea jacea ssp jacea
1000 gram for 342 Euros
available for preorder



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Centaurea jacea ssp jacea

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 557

The average, annual, minimum temperature zone where Centaurea jacea ssp jacea is cold hardy
USDA Zone:6 -10° to 0°F   (-23.5° to -18°C)
Type of plant - perennial
Flower or inflorescence: ROSE-PURPLE ~ 3cm. dia.
Fruit: BROWN to BLACK.........(germ. 1-3 weeks)
Height, in meters: 1.5
Height, in feet: 4.95
Centaurea jacea ssp jacea sales history

Synonyms (alternative names) for Centaurea jacea ssp jacea:
Centaurea pratensis, 

Common names for Centaurea jacea ssp jacea:

(folk:treat bruises),  Brown Knapweed,  Gemeine Flockenblume,  Jacee,  Kara Kantaron,  Radiant Cornflower,  Rayed Knapweed,  Wiesen-Flockenblume, 


Centaurea jacea ssp jacea is included in the following
B and T World Seeds flowering plant categories.

1:   Stock list
Our stock changes almost every day, with seeds arriving and being shipped all over the world.
We only stock long lived seeds, except for a few species that are always in demand.
Seeds that are not in stock are acquired fresh when ordered.
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38:   Indian Native and Introduced Plants
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185:   Plant Species whose germination is improved by Smoke
"Smoke" contains a butenolide compound produced by certain plants when heated, it speeds up or starts the germination of seeds from many different genera.
246:  Asteraceae
708:  Compositae
952:   Wholesale Selection


Happier and Healthier Plants, Naturally

plant-fungus communities, for improved nutrition, and disease and drought resistance.


Germination guide for Centaurea jacea ssp jacea

These notes are a general guide, it is recommended to check specialist literature for some of the more unusual seeds in our lists.
Seed Germination Theory and Practice by Professor Norman C. Deno
Some knowledge about growing from seed is necessary to germinate even the easiest seeds. Most seeds require humidity to germinate, even desert plants like Welwitschia mirabilis require that their growing medium remains moist until germination.

Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet, the seeds may not get the oxygen they require.
Some seeds need to be in the light (surface sown) or in the dark (sown deep enough to receive little or no light) to germinate. A rule of thumb is to cover the seeds their own width deep in the growing medium, but some seeds prefer to be sown much deeper, and some fairly large seeds like to be surface sown (or higher).
Many seeds germinate best at certain temperatures, some will germinate at a comparatively wide range of temperatures, yet others need fluctuating temperatures.
Almost all seeds are waiting in a dormant state for some outside stimulus to break their dormancy, some just need sufficiently high ambiant humidity, others need scarification, vernalization or to be passed through the intestines of an animal.

Centaurea jacea ssp jacea seeds will usually germinate in 7-14 days.
Normally germinates in the dark. Sow Centaurea jacea ssp jacea seeds about 2mm deep in a Well drained seed sowing mix at about 15-20°C.


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