Matthiola Stock Anytime Deep Blue Seedling Tray

For professional production, plant one rooted liner per 4-inch container using a high-quality, well-drained medium . Maintain a media pH between 5.8 and 6.5 and provide a constant feed of nitrate-based fertilizer at 175 to 225 ppm Nitrogen . To ensure the highest quality spikes and prevent bud drop, finish the crop with daytime temperatures of 60 to 65°F and night temperatures of 55 to 60°F . This variety typically finishes in 8 to 12 weeks with supplemental lighting, though it can take up to 16 weeks under natural short-day conditions . Provide high light levels (2500 to 5000 fc) throughout production to ensure the best stem quality

It is absolutely vital that you never pinch Anytime Deep Blue; these plants are genetically programmed to produce one magnificent central flowering spike.

 For greenhouse production, we recommend spacing your containers to allow for a density of approximately 6 to 7 plants per square foot . This proper spacing is your best cultural defense, as it ensures the necessary airflow and sunlight penetration to prevent foliar diseases and stem stretching.

Regularly scout your crop for common pests to prevent damage to the developing flowering spikes. Aphids and Thrips: These are major concerns; thrips are particularly attracted to developing buds and can cause distorted or discolored blooms . Cabbage Butterflies and Caterpillars: Keep an eye out for these pests, which can quickly defoliate the plant if left unchecked .

Most issues are triggered by high humidity and stagnant air, so environmental management is your first line of defense. Fusarium: Stock is sensitive to Fusarium, so always start with clean media and avoid over-saturating the soil . Downy and Powdery Mildew: These often develop if humidity levels are high or if foliage remains wet overnight . Sclerotinia and Clubroot: Monitor for these issues, particularly in cool, damp environments .