Native Plants

Curlycup Gumweed

Grindelia squarrosa var. quasiperennis

USDA symbol: GRSQQ

biennial forb

Canada: native
Lower 48 states: native

If you’re looking for a tough-as-nails native wildflower that can handle whatever Mother Nature throws at it, curlycup gumweed (Grindelia squarrosa var. quasiperennis) might just be your new best friend. This resilient North American native has been quietly thriving in prairies and open spaces for centuries, and it’s ready to ...

Curlycup Gumweed: A Hardy Native Wildflower for Low-Maintenance Gardens

If you’re looking for a tough-as-nails native wildflower that can handle whatever Mother Nature throws at it, curlycup gumweed (Grindelia squarrosa var. quasiperennis) might just be your new best friend. This resilient North American native has been quietly thriving in prairies and open spaces for centuries, and it’s ready to bring that same tenacity to your garden.

What is Curlycup Gumweed?

Curlycup gumweed is a herbaceous perennial (though it can also behave as an annual or biennial depending on conditions) that belongs to the sunflower family. Don’t let the name fool you – while it might sound a bit unusual, this plant produces cheerful yellow daisy-like flowers that brighten up any landscape. The gumweed part of its name comes from the sticky, resinous substance found on its flower buds, which has historically been used for medicinal purposes.

You might also encounter this plant under its synonym, Grindelia perennis, in older gardening references or seed catalogs.

Where Does Curlycup Gumweed Call Home?

This hardy native has quite an impressive range across North America. You’ll find it naturally growing from the Canadian provinces of Alberta, British Columbia, Manitoba, Ontario, Quebec, Saskatchewan, and the Northwest Territories, down through much of the western and central United States including California, Colorado, Idaho, Minnesota, Montana, Nebraska, Nevada, North Dakota, South Dakota, Utah, Washington, and Wyoming.

  • Species observed
  • No observations

Why Consider Curlycup Gumweed for Your Garden?

There are several compelling reasons to give this native wildflower a spot in your landscape:

  • Drought tolerance: Once established, curlycup gumweed can handle dry conditions like a champ
  • Low maintenance: This is not a plant that demands constant attention or pampering
  • Pollinator magnet: Bees, butterflies, and other beneficial insects flock to its nectar-rich flowers
  • Long bloom period: Flowers typically appear from mid to late summer, providing late-season color
  • Adaptable: Tolerates poor soils and challenging growing conditions
  • Native plant benefits: Supports local ecosystems and wildlife

Perfect Garden Settings

Curlycup gumweed shines in several types of garden settings:

  • Prairie and wildflower gardens: A natural fit for naturalized plantings
  • Xeriscape gardens: Excellent choice for water-wise landscaping
  • Native plant gardens: Adds authentic regional character
  • Disturbed site restoration: Helps stabilize and revegetate challenging areas
  • Cottage gardens: Provides a wild, informal charm

Growing Conditions and Care

The beauty of curlycup gumweed lies in its simplicity. This plant thrives in USDA hardiness zones 3-9, making it suitable for a wide range of climates.

Ideal Growing Conditions:

  • Sunlight: Full sun (6+ hours of direct sunlight daily)
  • Soil: Well-drained soils; tolerates poor, sandy, or clay soils
  • Water: Drought tolerant once established; minimal supplemental watering needed
  • pH: Adaptable to various soil pH levels

Planting and Establishment Tips

Getting curlycup gumweed established in your garden is refreshingly straightforward:

  • Seeding: Direct seed in fall or early spring when soil temperatures are cool
  • Soil preparation: Light cultivation is sufficient; avoid over-amending the soil
  • Spacing: Allow adequate space between plants as they can spread naturally
  • Watering: Provide occasional water during establishment, then let nature take over
  • Maintenance: Deadheading spent flowers can encourage additional blooms, but it’s not necessary

The Bottom Line

Curlycup gumweed is one of those wonderful plants that proves native doesn’t mean boring. With its cheerful yellow flowers, impressive drought tolerance, and valuable pollinator benefits, it’s an excellent choice for gardeners who want maximum impact with minimal effort. Whether you’re creating a prairie restoration, adding to a native plant collection, or simply want a reliable perennial that can handle tough conditions, curlycup gumweed delivers on all fronts.

Best of all, by choosing this native species, you’re not just adding beauty to your landscape – you’re also supporting local wildlife and contributing to the preservation of North America’s natural heritage. Now that’s what we call a win-win!

Grindelia squarrosa var. quasiperennis is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Grindelia squarrosa var. quasiperennis is also known as:

Grindelia perennis | USDA symbol: GRPE2

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Dicot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicotyledons
Subclass: Asteridae
Order: Asterales
Family: Asteraceae Bercht. & J. Presl - Aster family
Genus: Grindelia Willd. - gumweed

Species: Grindelia squarrosa (Pursh) Dunal - curlycup gumweed

Variety: Grindelia squarrosa (Pursh) Dunal var. quasiperennis Lunell - curlycup gumweed

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA