Photo by Melody

PlantFiles: Corn Cockle
Agrostemma githago 'Ocean Pearl'

Family: Caryophyllaceae (kar-ree-oh-fil-AY-see-ee) (Info)
Genus: Agrostemma (ag-roh-STEM-uh) (Info)
Species: githago (GITH-uh-go) (Info)
Cultivar: Ocean Pearl

2 vendors have this plant for sale.

7 members have or want this plant for trade.


18-24 in. (45-60 cm)

9-12 in. (22-30 cm)

Not Applicable

Sun Exposure:
Full Sun
Sun to Partial Shade

All parts of plant are poisonous if ingested

Bloom Color:
White/Near White

Bloom Time:
Mid Summer


Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Unknown - Tell us

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3 positives
No neutrals
1 negative

Gardeners' Notes:

Positive irishmist On Jul 25, 2014, irishmist from Rochester, NY (Zone 6a) wrote:

Growing this for the first time and in my Zone 6a garden it just began blooming from an early spring sowing. Have it in a patio pot with pink Agrostemma 'Milas', deep blue/purple larkspur and bright pink Silene armeria - lovely! My seedlings were too crowded and I thinned some but not to recommended spacing and they still are doing well. Plan to expand this combo next year adding bachelor buttons, nigella and cosmos for a great self sowing garden area. Will use 9-12" spacing next year for more fully developed plants.

Positive Domehomedee On Aug 5, 2011, Domehomedee from Arroyo Grande, CA (Zone 9a) wrote:

This is my first year with these charming flowers. I have them growing on a dry hillside with agaves and sages. They are so pretty and delicate, I hope they become invasive, at least within the boundries of my garden.

Positive celtic_dolphin On Jan 6, 2007, celtic_dolphin from Boone, NC (Zone 4b) wrote:

This may be a weed or invasive in other areas - but if all weeds were so pretty we wouldn't mind them so much! I started the seeds too late in the season, yet they still managed to bloom for me, I hope to get a better start with them this year. Nice and tall, not very wide - they fit in beautifully with other flowers, not crowding them out, at least, not in my area.

Negative cherishlife On Nov 12, 2004, cherishlife from Pocola, OK (Zone 7a) wrote:

According to the USDA website, this plant is a noxious weed in Arkansas and South Carolina.


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

Arroyo Grande, California
Burlingame, California
Richmond, California
San Leandro, California
Rochester, New York
Warrensville, North Carolina
Oklahoma City, Oklahoma

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