Rosinweed
Silphium integrifolium
Family: Asteraceae
Rosinweed grows in full sun and prefers dry to medium well-drained soil. Water needs: Low.
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How to Grow Rosinweed
Rosinweed growing information includes sunlight requirements of Full sun, soil conditions listed as Dry to medium well-drained soil with a soil pH of 6.0-8.0, and Low water needs. The listed hardiness zones are 4-9. For propagation reference, the database lists germination or establishment information for Rosinweed as 21-60 days after stratification, with planting or establishment depth listed as 1/4 inch. Days to maturity are listed as 2-3 years.
Plant Overview
Rosinweed (Silphium integrifolium) is listed in the Asteraceae family and categorized as a flower with a perennial life cycle. This profile summarizes growing information for hardiness, light, soil, water, seed starting, maturity, and other available cultivation details. Difficulty is listed as Easy.
- Plant ID
- PLT-0428
- Family
- Asteraceae
- Plant type
- Flower
- Life cycle
- Perennial
- Difficulty
- Easy
Growing Conditions
Rosinweed is listed for full sun conditions. Water needs are listed as low. The database soil reference is Dry to medium well-drained soil. The listed soil pH range is 6.0-8.0, and the listed hardiness range is 4-9.
- Hardiness zones
- 4-9
- Sunlight
- Full sun
- Soil
- Dry to medium well-drained soil
- Soil pH
- 6.0-8.0
- Water needs
- Low
Seed & Germination
For seed starting, the listed germination time is 21-60 days after stratification and the seed depth is 1/4 inch. The listed time to maturity is 2-3 years. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 21-60 days after stratification
- Seed depth
- 1/4 inch
Harvest & Propagation
- Days to maturity
- 2-3 years
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Growing Reference Note
Plant performance can vary with climate, soil, weather, cultivar, seed quality, and gardening methods. The values on this page are general database reference ranges rather than a substitute for local extension guidance or seed-packet instructions.