B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Achillea clavennae is cold hardy
USDA Zone:3 -40° to -30°F (-40° to -34.5°C)
|Type of plant - perennial
Flower or inflorescence:
|Height, in meters: 0.4
Height, in feet: 1.32
|Achillea clavennae sales history
Common names for Achillea clavennae:
|Bittere Schafgarbe, Silver Yarrow,|
is included in the following
B and T World Seeds flowering plant categories.
|9||: Alpine and Rock Garden Seed List (Hardy and Tender)|
|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.|
|42||: Croatian Native and Introduced Plants|
|43||: Herbaceous Border Plant Seed List|
|45||: Bee and Butterfly Attracting also Honey and Pollen Plant Seeds|
|55||: Fragrant or Aromatic Flower or Foliage Plant Seeds|
|77||: Central European Native and Introduced Plants|
|78||: South Eastern European 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.|
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.
Achillea clavennae seeds will usually germinate in 30-100 days, even under good conditions germination may be erratic.
Reduce soil temperature at night.