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Helenium autumnale Autumn Leaves

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Approximately 5000.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.

Helenium autumnale Autumn Leaves
10 gram for 29 Euros
available for preorder


Helenium autumnale Autumn Leaves
25 gram for 64 Euros
available for preorder


Helenium autumnale Autumn Leaves
100 gram for 247 Euros
available for preorder


Helenium autumnale Autumn Leaves
250 gram for 609 Euros
available for preorder


Helenium autumnale Autumn Leaves
500 gram for 1189 Euros
available for preorder


Helenium autumnale Autumn Leaves
1000 gram for 1860 Euros
available for preorder


Helenium autumnale Autumn Leaves
5000 gram for 8671 Euros
available for preorder


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Helenium autumnale Autumn Leaves

Elements of Structural and Systematic Botany

B and T World Seeds' Botanical Glossary

B and T World Seeds' reference number: 438148

The average, annual, minimum temperature zone where Helenium autumnale Autumn Leaves is cold hardy
USDA Zone:3 -40° to -30°F   (-40° to -34.5°C)
Type of plant - annual or perennial, depending on climate
Flower or inflorescence: YELLOW to BRONZE - RED MIX
Fruit: (stratify or vernalise, germ. 3-4 weeks)
Height, in meters: 1.6
Height, in feet: 5.28
Helenium autumnale Autumn Leaves sales history


Helenium autumnale Autumn Leaves 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
53:   Bedding Plant Seed List
177:   Shrubs and Trees For Autumn Colour
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 Helenium autumnale Autumn Leaves

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.

Helenium autumnale Autumn Leaves seeds will usually germinate in 7-10 days.
Sow Helenium autumnale Autumn Leaves seeds about 2mm deep in a Peaty seed sowing mix at about 20°C.

Can be sown in situ. Reduce soil temperature at night.


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