How much sun does Crested Pricklypoppy need?

Crested Pricklypoppy grows best in full sun conditions.

When does Crested Pricklypoppy bloom?

Crested Pricklypoppy blooms in June, July, and August.

Where is Crested Pricklypoppy native?

Crested Pricklypoppy (Argemone polyanthemos) is native to CO, KS, MT, ND and 6 more states, per vouchered herbarium specimen records and regional native plant society lists.

Is Crested Pricklypoppy toxic to livestock?

Crested Pricklypoppy is listed as toxic to grazing livestock such as cattle, sheep, and goats (moderate severity) by the USDA PLANTS Database. This is separate from pet (dog and cat) toxicity.

What pollinators does Crested Pricklypoppy attract?

Crested Pricklypoppy draws bees and beetles.

Is Crested Pricklypoppy HOA-friendly?

Crested Pricklypoppy takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Crested Pricklypoppy

Name: Pollinator Patch
Author: Pollinator Patch

Argemone polyanthemos

Last reviewed: August 2026

Toxicity unknown

Crested Pricklypoppy (Argemone polyanthemos) 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.

Crested Pricklypoppy is listed as toxic to grazing livestock (cattle, sheep, and goats) at a moderate level by the USDA PLANTS Database (opens in new tab). This is a livestock indicator and is separate from pet toxicity.

Light

full sun

Water

low

Size

12"–36" H × 6"–18" W

Bloom

Jun, Jul, Aug

Native to

CO, KS, MT, ND and 6 more states

Pollinators

bees, 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 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Browse plants for this ecoregion

Northwestern Forested Mountains Southern Rockies Arizona/New Mexico Mountains Chihuahuan Deserts High Plains Southwestern Tablelands Central Great Plains Great Plains Cross Timbers Edwards Plateau Texas Blackland Prairies Central Irregular Plains Northwestern Great Plains

Crested pricklypoppy is an annual wildflower that produces large, showy white flowers from June through August. The plant has spiny stems and leaves with a somewhat thistle-like appearance, growing 1-3 feet tall in full sun conditions. It thrives in low-water gardens and poor soils where many other plants struggle.

In an HOA neighborhood

Crested Pricklypoppy 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.

Spiny appearance looks weedy to many homeowners
Common name includes 'prickly' which sounds undesirable
Annual lifecycle means gaps in landscape coverage

Wildlife value

The large white blooms attract native bees and beetles during summer months. As an annual, it provides seasonal nectar resources for pollinators in dry landscape areas.

Common questions

How much sun does Crested Pricklypoppy need?: Crested Pricklypoppy grows best in full sun conditions.
When does Crested Pricklypoppy bloom?: Crested Pricklypoppy blooms in June, July, and August.
Where is Crested Pricklypoppy native?: Crested Pricklypoppy (Argemone polyanthemos) is native to CO, KS, MT, ND and 6 more states, per vouchered herbarium specimen records and regional native plant society lists.
Is Crested Pricklypoppy toxic to livestock?: Crested Pricklypoppy is listed as toxic to grazing livestock such as cattle, sheep, and goats (moderate severity) by the USDA PLANTS Database. This is separate from pet (dog and cat) toxicity.
What pollinators does Crested Pricklypoppy attract?: Crested Pricklypoppy draws bees and beetles.
Is Crested Pricklypoppy HOA-friendly?: Crested Pricklypoppy 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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