Early single-stem, or column-type stock in a highly uniform series for one-cut harvest. Aptly named for strong, straight, rigid stems. Iron performed well in our spring, early summer, and fall trials. Selectable for doubles and 55% double without selection. Compared to Katz, Iron is slightly later to flower, and has somewhat shorter and thicker stems. Tightly spaced florets on the flower spike make for compact 1 1/2–2", dark rose-red blooms with a full appearance. NOTE: This variety produces one flowering stem per plant. Pinching is not advisable as it will terminate flowering.
• Edible Flowers: The peppery, clove-like flavor of the flowers lends itself well to use as a garnish on salads, desserts, and drinks.
DAYS TO GERMINATION: 7-14 days at 65-75°F (18-24°C)
SOWING: Transplant (recommended) - Sow ¼" deep into 128-cell plug flats 5-6 weeks before last frost. After danger of frost has passed, harden-off plants and transplant to the field or protected structure. Direct seed - After last frost. Do not pinch plants. Succession-plant every two weeks for multiple harvests. Stock is a cool-weather crop. Spring and fall-blooming successions are optimal. Stock is a member of the Brassica plant family and is susceptible to flea beetle predation. To prevent flea beetle damage, cover plants with row cover at the time of transplanting. SELECTION: Selection for double-flowering plants is a difficult and time-consuming process. For most situations, we recommend finding a use for the single-flowering plants rather than conducting selection. Chilling seedlings causes visual differences that allow you to select for double-flowered plants by observing color, size, and shape of the cotyledon. While in the cotyledon stage, expose the seedlings to temperatures of 40-45°F (4-7°C) for 3-4 days. Select lighter green seedlings with an oval shape; these will produce double flowers. Discard very small seedlings, ones that are darker green in color, and those with rounder shaped cotyledons; these will produce single flowers. See our Stock Production Guide #8227 for more details and information on selection.
LIGHT PREFERENCE: Sun.
PLANT HEIGHT: Varies.
PLANT SPACING: 6" Trellis, such as Hortonova, used as horizontal support, is necessary when the temperatures are consistently above 60°F (16°C) or where it rains frequently.
HARDINESS ZONES: Annual.
STEM LENGTH: 24-28".
VASE LIFE: 5-10 days.
STORAGE TEMPERATURE: 36-41°F (2-5°C).
HARVEST: Fresh - Harvest when ⅓–½ the florets on the stem are open.
Johnny's is committed to your success, every step of the way.
We want you, our customer, to be 100% satisfied with all of our seeds, tools, and supplies.
If anything you purchase from us proves unsatisfactory, we will either replace the item or refund the purchase price.
Days To Maturity
Average number of days from seeding date to harvest, within a specific crop group. If a transplanted crop: average number of days from transplant date. Not sure if crop is direct-seeded or transplanted? Check the Growing Information box for details. If crop can be both direct-seeded or transplanted, days to maturity refers to direct seeding. Days to maturity for all flowers and herbs is calculated from seeding date.
90 - 105 Days
Plants can be Annuals (single growing season), Perennials (grow year after year), Tender Perennials (grow year after year in warmer climates; and in some cases when given special protection in colder climates), or Biennials (require two years to mature).
Hybrid: The offspring of a cross between two or more distinct parent lines, usually of same species, and selected for improved traits. Open-pollinated: A non-hybrid variety that can reproduce itself in kind, demonstrating relatively stable traits from one generation to the next.