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Narrowleaf Hawkweed

Hieracium umbellatum

Last reviewed: October 2026

Narrowleaf Hawkweed (Hieracium umbellatum)
Photo: (c) Nina Filippova, some rights reserved (CC BY)

Toxicity unknown

Narrowleaf Hawkweed (Hieracium umbellatum) 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

full sun

Water

low

Size

12"–36" H × 8"–18" W

Bloom

Jun, Jul, Aug, Sep

Native to

CO, CT, IA, ID and 23 more states

Pollinators

bees, butterflies

Before you buy

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Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 459 programs across 44 states, each with a link to the provider and the date we last checked it.

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Browse plants for this ecoregion

Coast RangeNorthwestern Forested MountainsNorth American DesertsHigh PlainsNorthwestern Glaciated PlainsNorthwestern Great PlainsWestern Corn Belt PlainsGreat PlainsNorthern ForestsNorthern Lakes and ForestsNorth Central Hardwood ForestsDriftless AreaSoutheastern Wisconsin Till PlainsCentral Corn Belt PlainsSouthern Michigan/Northern Indiana Drift PlainsHuron/Erie Lake PlainsNortheastern HighlandsNortheastern Coastal ZoneNorthern Allegheny PlateauRidge and ValleyAcadian Plains and HillsEastern Great Lakes LowlandsAtlantic Coastal Pine Barrens

Narrowleaf hawkweed is a drought-tolerant perennial that produces bright yellow dandelion-like flowers from summer through early fall. This native wildflower forms compact clumps with narrow leaves and requires minimal water once established. It thrives in sunny locations and poor soils where other plants struggle.

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In an HOA neighborhood

Narrowleaf Hawkweed 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.

  • Name contains 'hawkweed' which has weedy associations
  • Can spread and naturalize beyond intended areas
  • May look wild or unkempt to conservative neighbors

Wildlife value

The cheerful yellow blooms attract bees and butterflies throughout the long flowering season. This plant provides important late-season nectar when many other flowers have finished blooming.

Common questions

How much sun does Narrowleaf Hawkweed need?
Narrowleaf Hawkweed grows best in full sun conditions.
When does Narrowleaf Hawkweed bloom?
Narrowleaf Hawkweed blooms in June, July, August, and September.
Where is Narrowleaf Hawkweed native?
Narrowleaf Hawkweed (Hieracium umbellatum) is native to CO, CT, IA, ID and 23 more states, per vouchered herbarium specimen records and regional native plant society lists.
What pollinators does Narrowleaf Hawkweed attract?
Narrowleaf Hawkweed draws bees and butterflies.
Is Narrowleaf Hawkweed HOA-friendly?
Narrowleaf Hawkweed 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 vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

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