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B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Cosmos atrosanguineus is cold hardy
|Type of plant - perennial
Flower or inflorescence:
capit. to 4cm. dia., dk. RED, frag. of chocolate
1-2 pinn. spath. to 15cm., lift - store like dahlia
|Height, in meters: 0.6
Height, in feet: 1.98
|Cosmos atrosanguineus seeds may be subject to seasonal availability
Synonyms (alternative names) for Cosmos atrosanguineus:
|Bidens atrosanguinea, Cosmos diversifolius v atrosa, Cosmos diversifolius var. atro,|
Common names for Cosmos atrosanguineus:
|Black Cosmos, Chocolate Cosmos,|
is included in the following
B and T World Seeds flowering plant categories.
|We are looking for seeds from this plant, if you know where we can find seeds or would like to be told when we have a source, please let me know.|
|6||: Bulbous and Rhizomatous Plant Seed List|
|43||: Herbaceous Border Plant Seed List|
|55||: Fragrant or Aromatic Flower or Foliage Plant Seeds|
|62||: Mexican 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.|
|720||: Fire Resistant Plants|
|Different classes of resistance: some grow back, some don't burn, a few have highly inflammable leaves that leave the rest of the plant intact, some trees don't have lower branches.|
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.
Cosmos atrosanguineus seeds will usually germinate in 5-10 days.
Can be sown in situ