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Approximately 5000.00 seeds per gram
seed-counts are only a guide, not to be used for accurate calculations.
B and T World Seeds' reference number:
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
(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.|
|952||: Wholesale Selection|
Some knowledge about growing from seed is necessary to germinate even the easiest seeds.
Most seeds require humidity to germinate, even desert plants like
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.
Helenium autumnale Autumn Leaves seeds will usually germinate in 7-10 days.
Can be sown in situ. Reduce soil temperature at night.