Cut flowers1 variety
Agrostemma
Agrostemma githagoAgrostemma, Agrostemma githago, also known as Corn Cockle, is a charming old-fashioned cottage garden annual prized for its elegant, satiny blooms held atop slender stems that sway gracefully in the breeze. Once a common sight in European grain fields, Agrostemma has become a beloved ornamental flower known for its effortless beauty and naturalistic appeal. While admired for its beauty, all parts of Agrostemma/Corn Cockle are considered toxic if ingested by people or animals. Care should be taken when planting around pets, livestock, and small children.
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Days to maturity
70–100 daysDays to germ.
7–14 daysSpacing
10–12 inHeight
24–36 inSun
Full SunHow we grow it
Germination
- Days to germ.
- 7–14 d
- Soil temp
- 55–65 °F
- Depth
- 0.125 in
Culture
- Days to maturity
- 70–100 d
- Spacing
- 10–12 in
- Height
- 24–36 in
- Sun
- Full Sun
- Frost
- to 10°F · hardy
- Sow indoors
- Yes
- Outdoor / direct
- Yes
Harvest
Timing · Zone 5a
Windows are anchored to an average last frost of May 21 (1 year in 10 as early as Apr 29, as late as Jun 2) and an average first frost of Sep 18 (1 year in 10 as early as Sep 6, as late as Oct 8). In a late or early year, slide them with it.
Compare in the calendarTrials
Every Agrostemma sowingSeed sources, counts, ratings, and the observations kept against each one.Agrostemma trials