Silphium integrifolium (Rosin Weed)
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Silphium integrifolium (NGN)

Rosin Weed

Tall stems topped with yellow daisy-like flowers that attracts bees and parasitic wasps. Foliage varies from narrow to broad and round, toothless or toothed and alternate, opposite or whorled. Prefers dry soils.
Height: 4-6 ft
Width: 24-36 in
Soil Conditions: Moist/Well Drained
Flower Color: Yellow
Bloom Time: July,August,September,October
Hardiness Zone: 4 TO 8
ITEM # CROP IMAGE SIZE CURRENT AVAIL
22676.1G #1 0
22676.38 38 Flat 25
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Characteristics & Attributes

Attracts Wildlife
Attracts Butterflies
Attracts Pollinators
Attracts Wildlife
Critter Resistance
Rabbit Resistant
Plant Habit
Upright
Light Conditions
Sun
Native Plant Community
Dry Prairie
Mesic Prairie
Flower Color
Yellow
Flower Hue
Medium
Flower Height
4' to 6'
Flower Type
Head
Foliage Color
Green
Leaf Texture
Coarse
Prune Time
Jan/Feb/March
Flower Form
Single
Flower Size
2"
Growth Rate
Fast

Possible Substitution Plants

Heliopsis helianthoides