Compassplant, Prairie Compassplant, Pilotweed, Polarplant
Silphium laciniatum can grow up to two meters tall and is closely related to the sunflower. Native to North America, it blooms in Central Europe from July to September. In the garden, it grows best in sunny spots and can withstand frost down to -9.4 °F/-23 °C. Its flowers are pollinated by honeybees and wild bees.
Characteristics & Description
Height, habit: 100 to 200 centimeters, herbaceous plant
Life cycle: Perennial
Poisonous: No
Origin: North America (Canada, USA) (distribution map)
USDA zone: 5 (-9.4 °F/-23 °C)
Botany
Name: Silphium laciniatum
Family: Asteraceae
Categories: Garden plants | Yellow & Orange Flowers |
