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Cirsium spinosissimum

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Cirsium spinosissimum
1 gram for 6 Euros
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Cirsium spinosissimum
10 gram for 24 Euros
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Cirsium spinosissimum
100 gram for 200 Euros
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Cirsium spinosissimum

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 35102

The average, annual, minimum temperature zone where Cirsium spinosissimum is cold hardy
USDA Zone:5 -20° to -10°F   (-29° to -23.5°C)
Type of plant - perennial
Flower or inflorescence: pale YELLOW, in 3.5cm. capitula
Fruit: cypsela to 5mm. long
Foliage: pinnatif. lobed. suborb.
Height, in meters: 1.2
Height, in feet: 3.96
Cirsium spinosissimum sales history

Common names for Cirsium spinosissimum:

Spiniest Thistle, 

Cirsium spinosissimum is included in the following
B and T World Seeds flowering plant categories.

43:   Herbaceous Border Plant Seed List
44:   Cut flowers Commercial and other Recommended Varieties
77:   Central European Native and Introduced Plants
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

Happier and Healthier Plants, Naturally

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

Germination guide for Cirsium spinosissimum

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.

Cirsium spinosissimum seeds will usually germinate in 15-18 days.
Sow Cirsium spinosissimum seeds about 3mm deep in a Well drained seed sowing mix at about 22°C.

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