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Achillea atrata

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Achillea atrata
We do not know how many seeds there will be in a packet !
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examples '200 seeds' or '0.50 gram', not as packet.
1 packet for 8 Euros
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Achillea atrata
1 gram for 15 Euros
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Achillea atrata
10 gram for 80 Euros
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Achillea atrata

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 23678

The average, annual, minimum temperature zone where Achillea atrata is cold hardy
USDA Zone:6 -10° to 0°F   (-23.5° to -18°C)
Type of plant - perennial
Flower or inflorescence: WHITE
Foliage: GREEN, cut
Height, in meters: 0.3
Height, in feet: 0.99
Achillea atrata sales history


Achillea atrata is included in the following
B and T World Seeds flowering plant categories.

9:   Alpine and Rock Garden Seed List (Hardy and Tender)
45:   Bee and Butterfly Attracting also Honey and Pollen Plant Seeds
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 Achillea atrata

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.

Achillea atrata seeds will usually germinate in 30-100 days, even under good conditions germination may be erratic.
Normally will only germinate with light so surface sow. Sow Achillea atrata seeds on the surface of a Well drained seed sowing mix at about 17°C.

Reduce soil temperature at night.


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