Katz Crimson Matthiola

Katz Crimson is an upright stock selection bred for cut-flower production, with a listed stem length of 32 inches. PanAmerican Seed lists spring and autumn flowering and reports that Katz plants produce about 50% double-flowering types; the series offers shorter crops and more uniform stem timing than traditional field types. It can be scheduled earlier or later, and year-round production is possible in some climates. [The exact PanAmerican plant profile](https://www.panamseed.com/Products/074605412001353/matthiola-katz-crimson/) distinguishes these production traits from garden-wide guarantees. ## Maintenance Grow it in full sun and moist, well-drained soil, using cooler spring or autumn conditions for the most reliable flowering. Stock can decline in hot weather, so the Katz series’ improved heat tolerance should not be read as a promise of summer performance in every climate. Harvest the upright stems for arrangements and remove spent stems to tidy the bed. [North Carolina Extension](https://plants.ces.ncsu.edu/plants/matthiola-incana/) describes the species’ garden care, while [Mississippi State Extension](https://extension.msstate.edu/publications/stock-matthiola-incana-for-the-farmer-florist) covers cut-flower production.