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Approximately 300.00 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 Echinacea purpurea White Swan is cold hardy
USDA Zone:3 -40° to -30°F (-40° to -34.5°C)
|Type of plant - perennial
Flower or inflorescence:
frag. WHITE, GREEN-GOLD (BRONZE) centre, July - October
sow early for first year flowering
|Height, in meters: 1
Height, in feet: 3.30
|Echinacea purpurea White Swan sales history
Synonyms (alternative names) for Echinacea purpurea White Swan:
|Rudbeckia purpurea Alba,|
Common names for Echinacea purpurea White Swan:
|White Coneflower, White Swan Cone Flower,|
Echinacea purpurea White Swan
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|
|36||: Herb Seed List Culinary Medicinal Dye and Aromatic|
|Not all medicinal, dye or aromatic plants are edible, some are toxic if eaten and others are dangerous if applied to the skin. Please check uses for plants.|
|43||: Herbaceous Border Plant Seed List|
|44||: Cut flowers Commercial and other Recommended Varieties|
|45||: Bee and Butterfly Attracting also Honey and Pollen Plant Seeds|
|55||: Fragrant or Aromatic Flower or Foliage Plant Seeds|
|87||: Natives of Central U.S.A.|
|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.|
|698||: First Year Flowering Perennials|
|700||: Humming Bird Nectar Plants|
|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.|
|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.
Echinacea purpurea White Swan seeds will usually germinate in 10-21 days.
Reduce soil temperature at night.