Silphium perfoliatum
CUP PLANT
Asteraceae

 
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Plant type: herbaceous soft-wooded perennial

Hardiness zones: 9-10

Sunlight: hot overhead sun to warm low sun

Soil Moisture: constantly moist

Soil: enriched soil, mildly acidic to mildly alkaline

Tolerances: light frost
2.5m
Plant habit
 
1m

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Silphium perfoliatum
CUP PLANT
Asteraceae

 

  Plant type: herbaceous soft-wooded perennial

Hardiness zones: 9-10

Sunlight: hot overhead sun to warm low sun

Soil Moisture: constantly moist

Soil: enriched soil, mildly acidic to mildly alkaline

Tolerances: light frost
2.5m
Plant habit
 
1m

FEATURES

Flowers: yellow

Flowering Time: mid summer to early autumn

Leaves: crossed leaf arrangement


DESIGN

Garden Styles: suits cottage, mediterranean, oriental & tropical designs

Uses: border, mass planting

Growth rate: average

Maintenance Level: average

Skill Level: average






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