Silphium laciniatum
TAXONOMY
FamilyAsteraceae
GenusSilphium
Zone4
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Silphium laciniatum, commonly known as Compass Plant, is a tall, perennial plant native to the prairies of North America. It belongs to the Asteraceae family and is known for its deeply lobed leaves that align north-south to minimize sun exposure. The plant produces bright yellow flowers and can grow up to 12 feet tall. It has a dormancy period during the winter months.
ALSO KNOWN AS
Compass Plant
Silphium gummiferum
Silphium laciniatum var. laciniatum
Silphium laciniatum var. robinsonii
Silphium spicatum
OVERVIEW
VPDCalculate
WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy4 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Compass Plant thrives in full sun and requires moderate temperatures. It prefers soil that dries out almost completely between waterings. The plant is relatively low-maintenance but does best in outdoor settings where it can receive ample sunlight and moderate humidity.Soil
Silphium laciniatum prefers well-drained loamy soil. It can tolerate a range of soil types but performs best in nutrient-rich, well-draining soil. Good drainage is essential to prevent root rot.Fertilizer
This plant does not have high fertilizer requirements. If needed, a balanced, slow-release fertilizer can be applied in the spring to support growth.Repotting
Compass Plant is not typically grown in pots and therefore does not require repotting. It is best suited for garden beds or naturalized areas.Propagation
Propagation of Silphium laciniatum is typically done through seeds. Seeds should be sown in the fall or stratified before spring planting. Ensure the seeds are planted in well-draining soil and kept moist until germination.Pruning
Pruning is not generally required for Compass Plant. However, deadheading spent flowers can encourage more blooms and prevent self-seeding if desired.Toxicity
Silphium laciniatum is not known to be toxic to pets or humans. It is generally considered safe for gardens and naturalized areas.Additional
Compass Plant is known for its deep taproot, which makes it drought-tolerant once established. It is an excellent choice for prairie restoration projects and can attract pollinators such as bees and butterflies.REVOLUTIONIZE YOUR PLANT CARE
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