Beschreibung
Silphium perfoliatum, the cup plant, or cup-plant reproduces by seeds. Since direct sowing of the cup plant may cause considerable problems and does not offer the same economic advantages on small or middle-sized areas, as compared to larger areas, we recommend for these plants (test planting, bee pastures) the cup plant in a 2-3-liter pot.
Pot Silphium perfoliatum can be planted practically throughout the year, except for winter where night frosts prevail. Best Silphium perfoliatum planting time is May-June.
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