Abundance and duration of Torenia flowering

The duration of Torenia flowering is usually expressed in calendar terms from June to October or as a total period of 3 to 6 months, while an individual flower retains its ornamental value on the plant for 10–15 days. The assessment of flowering abundance is often descriptive, indicating the intensity of inflorescence formation on the plant.

Realization of Torenia's flowering potential is significantly influenced by agrotechnics, including pinching of shoots at the 6-true-leaf stage to stimulate branching and regular deadheading of spent inflorescences. To maintain stable intensity, regular watering is required as the plant is sensitive to drought, along with the application of mineral fertilizers, especially potassium, during the budding period.

Lighting conditions play a critical role: moderate lighting is required for maximum abundance, whereas exposure to direct sunlight and high temperatures leads to a decrease in ornamental quality. In breeding work, flowering parameters are regulated by hybridization, mutagenesis, and the study of the effects of phytohormones on flower bud development.