Buttonbush
Cephalanthus occidentalis
Family: Rubiaceae
Buttonbush grows in full sun to partial shade and prefers moist to wet, organic-rich soil. Water needs: High; tolerates wet sites.
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How to Grow Buttonbush
Buttonbush growing information includes sunlight requirements of Full sun to partial shade, soil conditions listed as Moist to wet, organic-rich soil with a soil pH of 5.0-8.0, and High; tolerates wet sites water needs. The listed hardiness zones are 5-11. For propagation reference, the database lists germination or establishment information for Buttonbush as 14-30 days, with planting or establishment depth listed as Surface sow or barely cover. Days to maturity are listed as 2-3 years to flowering from seed.
Plant Overview
Buttonbush (Cephalanthus occidentalis) is listed in the Rubiaceae family and categorized as a shrub with a perennial deciduous shrub 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-0321
- Family
- Rubiaceae
- Plant type
- Shrub
- Life cycle
- Perennial deciduous shrub
- Difficulty
- Easy
Growing Conditions
Buttonbush is listed for full sun to partial shade conditions. Water needs are listed as high; tolerates wet sites. The database soil reference is Moist to wet, organic-rich soil. The listed soil pH range is 5.0-8.0, and the listed hardiness range is 5-11.
- Hardiness zones
- 5-11
- Sunlight
- Full sun to partial shade
- Soil
- Moist to wet, organic-rich soil
- Soil pH
- 5.0-8.0
- Water needs
- High; tolerates wet sites
Seed & Germination
For seed starting, the listed germination time is 14-30 days and the seed depth is Surface sow or barely cover. The listed time to maturity is 2-3 years to flowering from seed. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 14-30 days
- Seed depth
- Surface sow or barely cover
Harvest & Propagation
- Days to maturity
- 2-3 years to flowering from seed
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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.