Plant Min Zone: 3a
Plant Max Zone: 8b
Sunlight: All Day Full Sun, Full Sun
Water / Rainfall: Low, Average
Soil Quality: Poor, Average, Rich
Bloom Season: Summer, Late Summer
Flower Color: Yellow
Berry / Fruit Color: Green
Spring Foliage Color: Green
Summer Foliage Color: Green
Fall Foliage Color: Green
Evergreen Foliage: No
Winter Interest: No
Scented Flowers: No
Drought Tolerance: Medium, High
Wet-Feet Tolerance: Low, Medium
Humidity Tolerance: Medium, High
Wind Tolerance: High
Poor Soil Tolerance: Rocky Soils, Sandy Soils, Shallow Soils, Alkaline Soils (high PH)
Height: 3' - 5'
Width: 2' - 3'
Growth Rate: Slow, Medium
Service Life: Very Long: 10-20 years
Maintenance Need: Low
Spreading Potential: Medium
Yearly Trimming Tips: Trim Perennial to Ground Around First Fall Freeze: No Winter Interest.
Plant Grouping Size: Small Grouping of 3-5, Medium Grouping of 5-10
Best Side of House: South Exposure, West Exposure, East Exposure
Extreme Planting Locations: Survives Severe Drought, Tolerates Extreme Heat, Top of Retaining Wall Locations, Resistant to Rabbits
Ornamental Features: Multiple Seasons of Interest, Long Blooming Season, Exceptional / Colorful Foliage
Special Landscape Uses: Naturalizing
Possible Pest Problems: None
Plant Limitations: May Needs Staking, Unwanted Self-seeding
>>>>>Silphiums (Silphium laciniatum) are very long-lived perennials considered a "Once it's there, it's there forever" plant!