Solidago caesia
A woodland goldenrod recognized by its blue‑purple stems and small clusters of yellow flowers set in the leaf axils. It thrives in part shade and well-drained, average to dry soils and is more clump‑forming than many prairie goldenrods. Plants stay modest in size and add late‑season color in shadier beds where other goldenrods struggle. A reliable nectar source for fall pollinators.
At‑a‑glance
- Group/Class: Species
- Height × spread: 18-36 in (46-91 cm) × 18-36 in (46-91 cm)
- Bloom window: August to September
- Color & flower form: Yellow heads in axillary clusters along arching, purplish stems
- Fragrance: 0 none
- USDA hardiness: zones 4-8
- Breeder / Year / Origin: unknown
- Pet safety: safe
How it differs
- Tolerates shade better than most goldenrods
- Axillary “wreath” flowering rather than large terminal panicles
- Clump‑forming habit with restrained spread
Strengths
- Performs in part shade
- Tolerates dry, poor soils once established
- Attractive to bees and butterflies
Care in one minute
- Site in part shade to full sun with well-drained soil
- Water to establish; then occasional deep watering in drought
- Mulch lightly; avoid burying crowns
- No staking needed; cut back in late winter
- Divide clumps if they expand beyond their space
Watch‑outs
- Rust may occur
- May reseed in open soils; remove spent stems if unwanted
- Pet safety note: Solidago species are generally not listed as toxic to cats and dogs; do not confuse with rayless goldenrod (Isocoma), which is toxic to horses.
Best uses (tags)
shade-tolerant, borders, woodlands, pollinators, late season
Provenance note
Native to central and eastern North America; frequently found in open woods and along bluffs.
References
- Missouri Botanical Garden – Solidago caesia
- NC State Extension – Solidago caesia
- ASPCA – Fall plant safety and rayless goldenrod note
Written by: Your Flowers Guide editorial team
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