Prickly Poppy
Argemone pleiacantha

Family: Papaveraceae (pa-pav-er-AY-see-ee) (Info)
Genus: Argemone (AR-ge-mon-ee) (Info)
Species: pleiacantha (plee-uh-KAN-thuh) (Info)

Category:

Annuals

Height:

24-36 in. (60-90 cm)

Spacing:

15-18 in. (38-45 cm)

Hardiness:

Not Applicable

Sun Exposure:

Full Sun

Danger:

Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:

White/Near White

Bloom Time:

Mid Summer

Late Summer/Early Fall

Mid Fall

Foliage:

Grown for foliage

Herbaceous

Blue-Green

Other details:

This plant is attractive to bees, butterflies and/or birds

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Non-patented

Propagation Methods:

From seed; direct sow outdoors in fall

From seed; direct sow after last frost

Seed Collecting:

Allow seedheads to dry on plants; remove and collect seeds

Regional

This plant has been said to grow in the following regions:

,

Concho, Arizona

Prescott Valley, Arizona

Tucson, Arizona

Bradley, Florida

Brooksville, Florida

Zephyrhills, Florida

Roswell, New Mexico

Barberton, Ohio

Arlington, Texas

Bulverde, Texas

Midland, Texas

San Antonio, Texas

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Gardeners' Notes:

4
positives
0
neutrals
0
negatives
RatingContent
Positive

On Apr 24, 2013, ransom3 from Zephyrhills, FL wrote:

The Argemones are stunningly beautiful plants.The large flowering white ones are heavenly looking.They are beautiful growing among larkspurs which bloom at the same time.

Positive

On Jul 5, 2007, Xenomorf from Valley of the Sun, AZ (Zone 9b) wrote:

Seen growing along the side of the road between Concho & Showlow, Arizona. Apache County, Highway 61, June 30th, mid Summer, zone 6b, elevation 6300 ft.

Positive

On Dec 7, 2004, warp10 from Tucson, AZ wrote:

The foliage is very blue, and deeply serated with nasty spines. My specimen is very erect. I was told that this wildflower is a real keeper in southern AZ.

Positive

On Feb 2, 2003, Crimson from Clarksville, TN (Zone 6b) wrote:

It is so easy to mistake these for weeds before they bloom! They look great mixed with poppy, watch out for those thorns! Ouch!