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Approximately 140.00 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 Helianthus laetiflorus is cold hardy
USDA Zone:4 -30° to -20°F (-34.5° to -29°C)
|Type of plant - perennial
Flower or inflorescence:
bright YELLOW, capitulae 10cm. dia.
lance.-ov., to 30cm. long back of border
|Height, in meters: 2
Height, in feet: 6.60
|Helianthus laetiflorus sales history
Synonyms (alternative names) for Helianthus laetiflorus:
Common names for Helianthus laetiflorus:
is included in the following
B and T World Seeds flowering plant categories.
|1||: Stock list|
|Our stock changes almost every day, with seeds arriving and being shipped all over the world.|
We only stock long lived seeds, except for a few species that are always in demand.
Seeds that are not in stock are acquired fresh when ordered.
|6||: Bulbous and Rhizomatous Plant Seed List|
|43||: Herbaceous Border Plant Seed List|
|44||: Cut flowers Commercial and other Recommended Varieties|
|87||: Natives of Central U.S.A.|
|161||: Edible Flowers|
|Some flowers are poisonous if not cooked. Some are only edible while in bud. Identify and correctly prepare all flowers before eating. Do not eat flowers that have been sprayed with weedkiller or other chemicals.|
|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.|
|719||: North American Native Ethnobotanicals|
|Including medicinal, dye, fiber, food, construction, ritual|
|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.
Helianthus laetiflorus seeds will usually germinate in 10-14 days.
Can be sown in situ.