Tosca Rose Matthiola

Tosca Rose is a greenhouse stock grown for florist stems, with a listed stem length of 24–32 inches. PanAmerican Seed lists spring flowering groups 2 and 3 and a seasonal bloom window from late spring through summer and autumn. The crop is scheduled for greenhouse production, with a 24–32 inch plant height and both sun and partial-sun exposure listed. [PanAmerican Seed](https://www.panamseed.com/Products/074606341004669/matthiola-tosca-rose/). ## Growing Allow five to six weeks for plug production, then plan eight to ten weeks to finish for autumn, ten to eleven weeks for spring, six to eight weeks for summer, or twelve to fourteen weeks for winter. The supplier notes that Tosca can be grown in summer under higher light levels and temperatures. Use the seasonal schedule to plan planting dates and stem harvests. ## Maintenance Keep greenhouse conditions aligned with the chosen production window and provide adequate light for upright stem development. Monitor crop timing after transplanting, since finish times differ by season. The listed stem length is a production target, while actual crop timing and stem quality respond to growing conditions.