Utah State University
Stock (Matthiola incana) is a cool-season annual in Utah with the highest quality stems being produced in spring and fall. Plants produce a single stem with either single or double florets that are known for their sweet and strong clove-like scent. Stock can be transplanted in the high tunnel and field in early spring and is tolerant of light frosts. Stems require a trellis to promote straight growth and can reach 36 inches tall. In North Logan, UT, stock grown in a high tunnel began blooming 5-10 weeks earlier, had 55% greater marketability, and stems averaged 4-8 inches longer than field-grown stock.
Lewis, Maegen; Stock, Melanie; Black, Brent; and Drost, Dan, "Stock Cut Flower Production in Utah" (2022). All Current Publications. Paper 2255.