Rocky Mountain Hemlock-Parsley
Conioselinum scopulorum
Last reviewed: August 2026
Toxicity unknown
Rocky Mountain Hemlock-Parsley (Conioselinum scopulorum) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part sun
Water
medium
Size
12"–36" H × 6"–12" W
Bloom
Jul, Aug, Sep
Native to
AZ, CO, NM, OR and 2 more states
Pollinators
bees, flies, beetles
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 445 programs across 44 states, each with a link to the provider and the date we last checked it.
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Conioselinum scopulorum is a native perennial that grows 1-3 feet tall with delicate, fern-like foliage and small white flower clusters. It thrives in partial sun with moderate water and blooms from July through September. The plant dies back to the ground each winter and returns in spring.
In an HOA neighborhood
Rocky Mountain Hemlock-Parsley takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Appears weedy and unstructured to most homeowners
- Dies back completely in winter leaving bare ground
- Delicate appearance may look unkempt in formal settings
Wildlife value
This native plant provides nectar for bees, flies, and beetles during its long summer blooming period. The umbrella-shaped flower clusters are particularly attractive to beneficial insects.
Common questions
- How much sun does Rocky Mountain Hemlock-Parsley need?
- Rocky Mountain Hemlock-Parsley grows best in part sun conditions.
- When does Rocky Mountain Hemlock-Parsley bloom?
- Rocky Mountain Hemlock-Parsley blooms in July, August, and September.
- Where is Rocky Mountain Hemlock-Parsley native?
- Rocky Mountain Hemlock-Parsley (Conioselinum scopulorum) is native to AZ, CO, NM, OR and 2 more states, per the World Checklist of Vascular Plants (Kew).
- What pollinators does Rocky Mountain Hemlock-Parsley attract?
- Rocky Mountain Hemlock-Parsley draws bees, flies, and beetles.
- Is Rocky Mountain Hemlock-Parsley HOA-friendly?
- Rocky Mountain Hemlock-Parsley takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Rocky Mountain Hemlock-Parsley? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
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