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Achillea ptarmica The Pearl Superior information page
germination advice, shopping cart,
all the sublists (specialist catalogues) Achillea ptarmica The Pearl Superior is included in,
some description and snippits of information.
The average, annual, minimum temperature zone where Achillea ptarmica The Pearl Superior is cold hardy
USDA Zone:5
-20° to -10°F (-29° to -23.5°C)
Approximately 3300 seeds per gram
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